pense-bête de bruno sanchiz

html : label

bruno — 2021-01-22T04:42:13Z

principalement utilisé dans des formulaires
le for doit correspondre à l'id

<form action="a.php"> <label for="machin">blah</label> <input type="radio" name="truc" id="machin" value="truc"><br> </form>

utilité :

On peut cliquer sur le texte blah et pas seulement sur le rond.
Il parait aussi que les lecteurs de textes vont lire le label.
si on rajoute un id="" au
, on peut mettre le champ en dehors du formulaire, mais l'input reste dans le formulaire : <form action="a.php" method="post" id="formulaire"> <label for="machin">Machin</label> <input type="radio" name="truc" id="machin" value="machin"><br> <input type="submit" value="Submit"> </form> <label for="other">Other</label> <input type="radio" name="truc" id="other" value="other" form="formulaire"><br>

html : redirection

bruno — 2020-01-22T15:29:50Z

Redirection

- Html Css Javascript... / html

html : images en "base64"

bruno — 2018-12-03T03:03:39Z

Pour créer l'image encodée en base64 :

cat image | base64 > b64
On peut la mettre dans un html :

Pour décoder le b64 :

cat b64 | base64 -d > image.png

rem : Les données sont encodées selon l'alphabet base64 tel que décrit dans la RFC 3548.

Propriétés css

bruno — 2018-04-04T21:10:15Z

doc

les standards

les tailles de caractères : em,px,in...

https://www.w3.org/Style/Examples/007/units.fr.html

float

doc exhaustif

float : none, float : left,right. display devient block Ne marche pas avec position:absolute

display

doc exhaustif

none : l'élément n'est pas affiché et sort du flux. inline : l'élément est interprété comme étant un seule ligne (sauf nets version <6), ex:span. block : l'élément est interprété comme un bloc, ex:div. inline-block : l'élément est interprété comme à un élément inline avec un comportement bloc (CSS2). Compatible avec Internet Explorer, Opéra et Safari pour FireFox < 2 utiliser -moz-inline-box. list-item : l'élément est interprété comme un bloc principal avec dedans un élément inligne pour un item de liste, attention les versions netscape <6 font un décalage. Ex:li. run-in : l'élément est interprété comme un bloc ou une ligne, selon le contexte, ne semble pas implémenté sauf pour le navigateur opéra et safari. compact : l'élément est interprété comme un bloc ou une ligne, selon le contexte, ne semble pas implémenté sauf pour le navigateur opéra et safari. marker : l'élément est interprété comme un marqueur pour les listes par exemple ou les feuilles de styles auditives peut être considéré comme inline, supprimé en CSS2.1. table : l'élément est interprété comme une balise 'table' inline-table : l'élément est interprété comme une balise 'table' table-row-group : l'élément est interprété comme une balise 'tboby' table-header-group : l'élément est interprété comme une balise 'thead' table-footer-group : l'élément est interprété comme une balise 'tfoot' table-row : l'élément est interprété comme une balise'tr' table-column-group : l'élément est interprété comme une balise 'colgroup' table-column : l'élément est interprété comme une balise 'col' table-cell : l'élément est interprété comme une balise 'td', 'th' table-caption : l'élément est interprété comme une balise 'caption' flex : l'élément est interprété comme un élément block de type conteneur d'élément flexible. inline-flex : l'élément est interprété comme un élément en inline de type conteneur d'élément flexible

html5 - < video > < /video >

bruno — 2018-01-14T05:16:40Z

https://www.w3schools.com/html/html5_video.asp

Tag Description

video Defines a video or movie
source Defines multiple media resources for media elements, such as and
track Defines text tracks in media players

Attribute Value Description

default : Specifies that the track is to be enabled if the user's preferences do not indicate that another track would be more appropriate
kind : Specifies the kind of text track
- captions
- chapters
- descriptions
- metadata
- subtitles
label text Specifies the title of the text track
src URL Required. Specifies the URL of the track file
srclang language_code Specifies the language of the track text data (required if kind="subtitles")

    <track src="devstories-en.vtt" label="English subtitles" kind="subtitles" srclang="en" default></track> </video>

on peut rajouter ça si on n'a pas le bon format :

 <param name="movie" value="http://releases.flowplayer.org/swf/flowplayer-3.2.1.swf" /> <param name="allowFullScreen" value="true" /> <param name="wmode" value="transparent" /> <param name="flashvars" value='config={"clip":{"url":"HTML5Sample_flv.flv","autoPlay":false,"autoBuffering":true}}' /> </object>

fichier vtt :
http://html5doctor.com/video-subtitling-and-webvtt/#contents

WEBVTT 1 00:00:01.000 --> 00:00:02.000 This is the first line of text, displaying from 1-2 seconds 2...

DOCS
http://html5doctor.com/video-subtitling-and-webvtt/#contents
https://openclassrooms.com/courses/apprenez-a-creer-votre-site-web-avec-html5-et-css3/creer-des-liens
https://stackoverflow.com/questions/15422592/html5-audio-to-reload-file
https://stackoverflow.com/questions/25821915/how-to-force-the-html5-audio-tag-to-reload-a-changing-file
https://stackoverflow.com/questions/4129674/does-html5-video-playback-support-the-avi-format#4129708
https://www.html5rocks.com/en/tutorials/video/basics/
https://www.htmlgoodies.com/html5/client/how-to-embed-video-using-html5.html
https://www.w3schools.com/html/html5_audio.asp
https://www.w3schools.com/html/html5_video.asp
https://www.w3schools.com/tags/tag_video.asp

html5 : canvas et path et svg

bruno — 2017-08-20T00:56:17Z

liens externes
svg seul : un cercle
button + svg : bouton
svg+transform+path : icone
button + svg+transform+path :bouton de recherche avec icone
canvas + getContext("2d") : une étoile

un cercle

un bouton de recherche

un icone de recherche

un bouton de recherche

une étoile

------
canvas (synonyme de calque, layer ) :
https://www.ibm.com/developerworks/library/wa-canvashtml5layering/index.html

css

#viewport { position: relative; } #viewport canvas { position: absolute; } canvas { background-color: transparent; }

et une fonction render appelée à chaque pas

function renderLoop(context) { context.clearRect(0, 0, width, height); background.render(context); ground.render(context); hills.render(context); cloud.render(context); player.render(context); }

voir les exports de inkscape en canevas HTML5

canvas : https://www.ibm.com/developerworks/library/wa-canvashtml5layering/index.html

canvas : https://www.w3schools.com/html/default.asp

paths : https://www.w3.org/TR/SVG/paths.html
/DIVERS/DOCS/HTML5-w3.org-paths.pdf

html : curseur

bruno — 2017-08-19T16:17:04Z

https://www.w3schools.com/csSref/pr_class_cursor.asp

taille max de l'image : 128x128 voire 32x32

<style type="text/css">
.curseur_normal{cursor:default;}
.curseur_auto{cursor:auto;}
.curseur_croix{cursor:crosshair;}
.curseur_aide{cursor:help;}
.curseur_move{cursor:move;}
.curseur_texte{cursor:text;}
.curseur_attente{cursor:wait;}
.curseur_pointer{cursor:pointer;}
.curseur_img{cursor:url('aa.png'), pointer;}
.curseur_n{cursor:n-resize;}
.curseur_s{cursor:s-resize;}
.curseur_e{cursor:e-resize;}
.curseur_w{cursor:w-resize;}
.curseur_ne{cursor:ne-resize;}
.curseur_nw{cursor:nw-resize;}
.curseur_se{cursor:se-resize;}
.curseur_sw{cursor:sw-resize;}
</style>
<h1>Général</h1>
<span class="curseur_normal"><strong>Curseur normal:</strong> cursor:default;</span><br />
<span class="curseur_auto"><strong>Curseur automatique:</strong> cursor:auto;</span><br />
<span class="curseur_croix"><strong>Curseur croix:</strong> cursor:crosshair;</span><br />
<span class="curseur_aide"><strong>Curseur aide:</strong> cursor:help;</span><br />
<span class="curseur_move"><strong>Curseur déplacement:</strong> cursor:move;</span><br />
<span class="curseur_pointer"><strong>Curseur main(pointeur):</strong> cursor:pointer;</span><br />
<span class="curseur_texte"><strong>Curseur texte:</strong> cursor:text;</span><br />
<span class="curseur_attente"><strong>Curseur attente(sablier):</strong> cursor:wait;</span><br />
<span class="curseur_img"><strong>Curseur image:</strong> cursor:url('adresse_de_limage'), default;</span>
<h1>Redimention</h1>
<span class="curseur_n"><strong>Curseur redimetion nord(haut):</strong> cursor:n-resize;</span><br />
<span class="curseur_s"><strong>Curseur redimetion sud(bas):</strong> cursor:s-resize;</span><br />
<span class="curseur_e"><strong>Curseur redimetion est(droite):</strong> cursor:e-resize;</span><br />
<span class="curseur_w"><strong>Curseur redimetion ouest(gauche):</strong> cursor:w-resize;</span><br />
<span class="curseur_ne"><strong>Curseur redimetion nord est(haut droite):</strong> cursor:ne-resize;</span><br />
<span class="curseur_nw"><strong>Curseur redimetion nord ouest(haut gauche):</strong> cursor:nw-resize;</span><br />
<span class="curseur_se"><strong>Curseur redimetion sud est(bas droite):</strong> cursor:se-resize;</span><br />
<span class="curseur_sw"><strong>Curseur redimetion sud ouest(bas gauche):</strong> cursor:sw-resize;</span><br />

Value	Description
alias	The cursor indicates an alias of something is to be created
all-scroll	The cursor indicates that something can be scrolled in any direction
auto	Default. The browser sets a cursor
cell	The cursor indicates that a cell (or set of cells) may be selected
context-menu	The cursor indicates that a context-menu is available
col-resize	The cursor indicates that the column can be resized horizontally
copy	The cursor indicates something is to be copied
crosshair	The cursor render as a crosshair
default	The default cursor
e-resize	The cursor indicates that an edge of a box is to be moved right (east)
ew-resize	Indicates a bidirectional resize cursor
grab	The cursor indicates that something can be grabbed
grabbing	The cursor indicates that something can be grabbed
help	The cursor indicates that help is available
move	The cursor indicates something is to be moved
n-resize	The cursor indicates that an edge of a box is to be moved up (north)
ne-resize	The cursor indicates that an edge of a box is to be moved up and right (north/east)
nesw-resize	Indicates a bidirectional resize cursor
ns-resize	Indicates a bidirectional resize cursor
nw-resize	The cursor indicates that an edge of a box is to be moved up and left (north/west)
nwse-resize	Indicates a bidirectional resize cursor
no-drop	The cursor indicates that the dragged item cannot be dropped here
none	No cursor is rendered for the element
not-allowed	The cursor indicates that the requested action will not be executed
pointer	The cursor is a pointer and indicates a link
progress	The cursor indicates that the program is busy (in progress)
row-resize	The cursor indicates that the row can be resized vertically
s-resize	The cursor indicates that an edge of a box is to be moved down (south)
se-resize	The cursor indicates that an edge of a box is to be moved down and right (south/east)
sw-resize	The cursor indicates that an edge of a box is to be moved down and left (south/west)
text	The cursor indicates text that may be selected
URL	A comma separated list of URLs to custom cursors. Note : Always specify a generic cursor at the end of the list, in case none of the URL-defined cursors can be used
vertical-text	The cursor indicates vertical-text that may be selected
w-resize	The cursor indicates that an edge of a box is to be moved left (west)
wait	The cursor indicates that the program is busy
zoom-in	The cursor indicates that something can be zoomed in
zoom-out	The cursor indicates that something can be zoomed out
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit

HTML:menus

bruno — 2017-08-04T16:08:42Z

http://www.outils-web.com/page-script-html-css-menu.asp

HTML:caractères spéciaux

bruno — 2017-03-19T19:00:55Z

Character Entity References Defined in HTML
dec	hexa	nom	lettre	explication
34	22	quot	"	quotation mark = APL quote
38	26	amp	&	ampersand
60	3C	lt	<	less-than sign
62	3E	gt	>	greater-than sign
160	A0	nbsp		no-break space = non-breaking space
161	A1	iexcl	¡	inverted exclamation mark
162	A2	cent	¢	cent sign
163	A3	pound	£	pound sign
164	A4	curren	¤	currency sign
165	A5	yen	¥	yen sign = yuan sign
166	A6	brvbar	¦	broken bar = broken vertical bar
167	A7	sect	§	section sign
168	A8	uml	¨	diaeresis = spacing diaeresis
169	A9	copy	©	copyright sign
170	AA	ordf	ª	feminine ordinal indicator
171	AB	laquo	«	left-pointing double angle quotation mark = left pointing guillemet
172	AC	not	¬	not sign
173	AD	shy		soft hyphen = discretionary hyphen
174	AE	reg	®	registered sign = registered trade mark sign
175	AF	macr	¯	macron = spacing macron = overline = APL overbar
176	B0	deg	°	degree sign
177	B1	plusmn	±	plus-minus sign = plus-or-minus sign
178	B2	sup2	²	superscript two = superscript digit two = squared
179	B3	sup3	³	superscript three = superscript digit three = cubed
180	B4	acute	´	acute accent = spacing acute
181	B5	micro	µ	micro sign
182	B6	para	¶	pilcrow sign = paragraph sign
183	B7	middot	·	middle dot = Georgian comma = Greek middle dot
184	B8	cedil	¸	cedilla = spacing cedilla
185	B9	sup1	¹	superscript one = superscript digit one
186	BA	ordm	º	masculine ordinal indicator
187	BB	raquo	»	right-pointing double angle quotation mark = right pointing guillemet
188	BC	frac14	¼	vulgar fraction one quarter = fraction one quarter
189	BD	frac12	½	vulgar fraction one half = fraction one half
190	BE	frac34	¾	vulgar fraction three quarters = fraction three quarters
191	BF	iquest	¿	inverted question mark = turned question mark
192	C0	Agrave	À	latin capital letter A with grave = latin capital letter A grave
193	C1	Aacute	Á	latin capital letter A with acute
194	C2	Acirc	Â	latin capital letter A with circumflex
195	C3	Atilde	Ã	latin capital letter A with tilde
196	C4	Auml	Ä	latin capital letter A with diaeresis
197	C5	Aring	Å	latin capital letter A with ring above = latin capital letter A ring
198	C6	AElig	Æ	latin capital letter AE = latin capital ligature AE
199	C7	Ccedil	Ç	latin capital letter C with cedilla
200	C8	Egrave	È	latin capital letter E with grave
201	C9	Eacute	É	latin capital letter E with acute
202	CA	Ecirc	Ê	latin capital letter E with circumflex
203	CB	Euml	Ë	latin capital letter E with diaeresis
204	CC	Igrave	Ì	latin capital letter I with grave
205	CD	Iacute	Í	latin capital letter I with acute
206	CE	Icirc	Î	latin capital letter I with circumflex
207	CF	Iuml	Ï	latin capital letter I with diaeresis
208	D0	ETH	Ð	latin capital letter ETH
209	D1	Ntilde	Ñ	latin capital letter N with tilde
210	D2	Ograve	Ò	latin capital letter O with grave
211	D3	Oacute	Ó	latin capital letter O with acute
212	D4	Ocirc	Ô	latin capital letter O with circumflex
213	D5	Otilde	Õ	latin capital letter O with tilde
214	D6	Ouml	Ö	latin capital letter O with diaeresis
215	D7	times	×	multiplication sign
216	D8	Oslash	Ø	latin capital letter O with stroke = latin capital letter O slash
217	D9	Ugrave	Ù	latin capital letter U with grave
218	DA	Uacute	Ú	latin capital letter U with acute
219	DB	Ucirc	Û	latin capital letter U with circumflex
220	DC	Uuml	Ü	latin capital letter U with diaeresis
221	DD	Yacute	Ý	latin capital letter Y with acute
222	DE	THORN	Þ	latin capital letter THORN
223	DF	szlig	ß	latin small letter sharp s = ess-zed
224	E0	agrave	à	latin small letter a with grave = latin small letter a grave
225	E1	aacute	á	latin small letter a with acute
226	E2	acirc	â	latin small letter a with circumflex
227	E3	atilde	ã	latin small letter a with tilde
228	E4	auml	ä	latin small letter a with diaeresis
229	E5	aring	å	latin small letter a with ring above = latin small letter a ring
230	E6	aelig	æ	latin small letter ae = latin small ligature ae
231	E7	ccedil	ç	latin small letter c with cedilla
232	E8	egrave	è	latin small letter e with grave
233	E9	eacute	é	latin small letter e with acute
234	EA	ecirc	ê	latin small letter e with circumflex
235	EB	euml	ë	latin small letter e with diaeresis
236	EC	igrave	ì	latin small letter i with grave
237	ED	iacute	í	latin small letter i with acute
238	EE	icirc	î	latin small letter i with circumflex
239	EF	iuml	ï	latin small letter i with diaeresis
240	F0	eth	ð	latin small letter eth
241	F1	ntilde	ñ	latin small letter n with tilde
242	F2	ograve	ò	latin small letter o with grave
243	F3	oacute	ó	latin small letter o with acute
244	F4	ocirc	ô	latin small letter o with circumflex
245	F5	otilde	õ	latin small letter o with tilde
246	F6	ouml	ö	latin small letter o with diaeresis
247	F7	divide	÷	division sign
248	F8	oslash	ø	latin small letter o with stroke, = latin small letter o slash
249	F9	ugrave	ù	latin small letter u with grave
250	FA	uacute	ú	latin small letter u with acute
251	FB	ucirc	û	latin small letter u with circumflex
252	FC	uuml	ü	latin small letter u with diaeresis
253	FD	yacute	ý	latin small letter y with acute
254	FE	thorn	þ	latin small letter thorn with
255	FF	yuml	ÿ	latin small letter y with diaeresis
338	152	OElig	Œ	latin capital ligature OE
339	153	oelig	œ	latin small ligature oe ligature is a misnomer, this is a separate character in some languages
352	160	Scaron	Š	latin capital letter S with caron
353	161	scaron	š	latin small letter s with caron
376	178	Yuml	Ÿ	latin capital letter Y with diaeresis
402	192	fnof	ƒ	latin small f with hook = function = florin
710	2C6	circ	ˆ	modifier letter circumflex accent
732	2DC	tilde	˜	small tilde
913	391	Alpha	Α	greek capital letter alpha
914	392	Beta	Β	greek capital letter beta
915	393	Gamma	Γ	greek capital letter gamma
916	394	Delta	Δ	greek capital letter delta
917	395	Epsilon	Ε	greek capital letter epsilon
918	396	Zeta	Ζ	greek capital letter zeta
919	397	Eta	Η	greek capital letter eta
920	398	Theta	Θ	greek capital letter theta
921	399	Iota	Ι	greek capital letter iota
922	39A	Kappa	Κ	greek capital letter kappa
923	39B	Lambda	Λ	greek capital letter lambda
924	39C	Mu	Μ	greek capital letter mu
925	39D	Nu	Ν	greek capital letter nu
926	39E	Xi	Ξ	greek capital letter xi
927	39F	Omicron	Ο	greek capital letter omicron
928	3A0	Pi	Π	greek capital letter pi
929	3A1	Rho	Ρ	greek capital letter rho there is no Sigmaf, and no U+03A2 character either
931	3A3	Sigma	Σ	greek capital letter sigma
932	3A4	Tau	Τ	greek capital letter tau
933	3A5	Upsilon	Υ	greek capital letter upsilon
934	3A6	Phi	Φ	greek capital letter phi
935	3A7	Chi	Χ	greek capital letter chi
936	3A8	Psi	Ψ	greek capital letter psi
937	3A9	Omega	Ω	greek capital letter omega
945	3B1	alpha	α	greek small letter alpha
946	3B2	beta	β	greek small letter beta
947	3B3	gamma	γ	greek small letter gamma
948	3B4	delta	δ	greek small letter delta
949	3B5	epsilon	ε	greek small letter epsilon
950	3B6	zeta	ζ	greek small letter zeta
951	3B7	eta	η	greek small letter eta
952	3B8	theta	θ	greek small letter theta
953	3B9	iota	ι	greek small letter iota
954	3BA	kappa	κ	greek small letter kappa
955	3BB	lambda	λ	greek small letter lambda
956	3BC	mu	μ	greek small letter mu
957	3BD	nu	ν	greek small letter nu
958	3BE	xi	ξ	greek small letter xi
959	3BF	omicron	ο	greek small letter omicron
960	3C0	pi	π	greek small letter pi
961	3C1	rho	ρ	greek small letter rho
962	3C2	sigmaf	ς	greek small letter final sigma
963	3C3	sigma	σ	greek small letter sigma
964	3C4	tau	τ	greek small letter tau
965	3C5	upsilon	υ	greek small letter upsilon
966	3C6	phi	φ	greek small letter phi
967	3C7	chi	χ	greek small letter chi
968	3C8	psi	ψ	greek small letter psi
969	3C9	omega	ω	greek small letter omega
977	3D1	thetasym	ϑ	greek small letter theta symbol
978	3D2	upsih	ϒ	greek upsilon with hook symbol
982	3D6	piv	ϖ	greek pi symbol
8194	2002	ensp		en space
8195	2003	emsp		em space
8201	2009	thinsp		thin space
8204	200C	zwnj	‌	zero width non-joiner
8205	200D	zwj	‍	zero width joiner
8206	200E	lrm	‎	left-to-right mark
8207	200F	rlm	‏	right-to-left mark
8211	2013	ndash	–	en dash
8212	2014	mdash	—	em dash
8216	2018	lsquo	‘	left single quotation mark
8217	2019	rsquo	'	right single quotation mark
8218	201A	sbquo	‚	single low-9 quotation mark
8220	201C	ldquo	“	left double quotation mark
8221	201D	rdquo	”	right double quotation mark
8222	201E	bdquo	„	double low-9 quotation mark
8224	2020	dagger	†	dagger
8225	2021	Dagger	‡	double dagger
8226	2022	bull	•	bullet = black small circle bullet is NOT the same as bullet operator
8230	2026	hellip	…	horizontal ellipsis = three dot leader
8240	2030	permil	‰	per mille sign
8242	2032	prime	′	prime = minutes = feet
8243	2033	Prime	″	double prime = seconds = inches
8249	2039	lsaquo	‹	single left-pointing angle quotation mark lsaquo is proposed but not yet ISO standardized
8250	203A	rsaquo	›	single right-pointing angle quotation mark rsaquo is proposed but not yet ISO standardized
8254	203E	oline	‾	overline = spacing overscore
8260	2044	frasl	⁄	fraction slash
8364	20AC	euro	€	euro sign
8465	2111	image	ℑ	blackletter capital I = imaginary part
8472	2118	weierp	℘	script capital P = power set = Weierstrass p
8476	211C	real	ℜ	blackletter capital R = real part symbol
8482	2122	trade	™	trade mark sign
8501	2135	alefsym	ℵ	alef symbol = first transfinite cardinal alef symbol is NOT the same as hebrew letter alef, U+05D0 although the same glyph could be used to depict both characters
8592	2190	larr	←	leftwards arrow
8593	2191	uarr	↑	upwards arrow
8594	2192	rarr	→	rightwards arrow
8595	2193	darr	↓	downwards arrow
8596	2194	harr	↔	left right arrow
8629	21B5	crarr	↵	downwards arrow with corner leftwardsc = carriage return
8656	21D0	lArr	⇐	leftwards double arrow Unicode does not say that lArr is the same as the 'is implied by' arrow but also does not have any other character for that function. So ? lArr can be used for 'is implied by'
8657	21D1	uArr	⇑	upwards double arrow
8658	21D2	rArr	⇒	rightwards double arrow Unicode does not say this is the 'implies' character but does not have another character with this function so ? rArr can be used for 'implies' as ISOtech suggests
8659	21D3	dArr	⇓	downwards double arrow
8660	21D4	hArr	⇔	left right double arrow
8704	2200	forall	∀	for all
8706	2202	part	∂	partial differential
8707	2203	exist	∃	there exists
8709	2205	empty	∅	empty set = null set = diameter
8711	2207	nabla	∇	nabla = backward difference
8712	2208	isin	∈	element of
8713	2209	notin	∉	not an element of
8715	220B	ni	∋	contains as member
8719	220F	prod	∏	n-ary product = product sign prod is NOT the same character as U+03A0 'greek capital letter pi' though the same glyph might be used for both
8721	2211	sum	∑	n-ary sumation sum is NOT the same character as U+03A3 'greek capital letter sigma' though the same glyph might be used for both
8722	2212	minus	−	minus sign
8727	2217	lowast	∗	asterisk operator
8730	221A	radic	√	square root = radical sign
8733	221D	prop	∝	proportional to
8734	221E	infin	∞	infinity
8736	2220	ang	∠	angle
8743	2227	and	∧	logical and = wedge
8744	2228	or	∨	logical or = vee
8745	2229	cap	∩	intersection = cap
8746	222A	cup	∪	union = cup
8747	222B	int	∫	integral
8756	2234	there4	∴	therefore
8764	223C	sim	∼	tilde operator = varies with = similar to tilde operator is NOT the same character as the tilde, U+007E, although the same glyph might be used to represent both
8773	2245	cong	≅	approximately equal to
8776	2248	asymp	≈	almost equal to = asymptotic to
8800	2260	ne	≠	not equal to
8801	2261	equiv	≡	identical to
8804	2264	le	≤	less-than or equal to
8805	2265	ge	≥	greater-than or equal to
8834	2282	sub	⊂	subset of
8835	2283	sup	⊃	superset of note that nsup, 'not a superset of, U+2283' is not covered by the Symbol font encoding and is not included. Should it be, for symmetry ? It is in ISOamsn
8836	2284	nsub	⊄	not a subset of
8838	2286	sube	⊆	subset of or equal to
8839	2287	supe	⊇	superset of or equal to
8853	2295	oplus	⊕	circled plus = direct sum
8855	2297	otimes	⊗	circled times = vector product
8869	22A5	perp	⊥	up tack = orthogonal to = perpendicular
8901	22C5	sdot	⋅	dot operator dot operator is NOT the same character as U+00B7 middle dot
8968	2308	lceil	⌈	left ceiling = apl upstile
8969	2309	rceil	⌉	right ceiling
8970	230A	lfloor	⌊	left floor = apl downstile
8971	230B	rfloor	⌋	right floor
9001	2329	lang	〈	left-pointing angle bracket = bra lang is NOT the same character as U+003C 'less than' or U+2039 'single left-pointing angle quotation mark'
9002	232A	rang	〉	right-pointing angle bracket = ket rang is NOT the same character as U+003E 'greater than' or U+203A 'single right-pointing angle quotation mark'
9674	25CA	loz	◊	lozenge
9824	2660	spades	♠	black spade suit black here seems to mean filled as opposed to hollow
9827	2663	clubs	♣	black club suit = shamrock
9829	2665	hearts	♥	black heart suit = valentine
9830	2666	diams	♦	black diamond suit

html:meta

bruno — 2007-02-28T18:57:00Z

/humans.txt

voir https://humanstxt.org/
/humans.txt

/security.txt

opengraph : les balises meta opengraph/og

site officiel ?, opengraphprotocol.org
Exemple avec ce site :

<meta property="og:type" content="website" /> <meta property="og:locale" content="fr_FR" /> <meta property="og:site_name" content="pense-bête de bruno sanchiz"/> <meta property="og:title" content="html:meta" /> <meta property="og:description" content="premières lignes de la page" /> <meta property="og:url" content="http://dindoun.lautre.net/spip.php?article104" /> <meta property="og:image" content="http://dindoun.lautre.net/IMG/arton104.png" />

(2007)

Pour renvoyer sur une autre page : redirection

header("location: index.php?erreur=2");die();exit();

 content="nombre de secondes" URL="l'adresse de renvoi"

NB on peut afficher quelque chose avant la redirection ;

ACTUALISATION AUTOMATIQUE DU SITE

pas de cache de la page

header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); header("Cache-Control: no-cache, must-revalidate"); header("Pragma: no-cache"); header("Edge-control: max-age=0s");