bienvenue sur l'interface de paiement
payment gateway
https://stackoverflow.com/questions/18121749/how-to-generate-a-unique-transaction-id-in-a-shopping-cart
session_destroy(), session_unset()
<?php
setcookie("langage", "php", time()+7200, "/", ".waytolearnx.com", 0);
?>
pour accéder à la variable
echo $_COOKIE["langage"]; // Sortie: php
https://www.w3schools.com/howto/howto_css_switch.asp
https://www.devenir-webmaster.com/V2/TUTO/CHAPITRE/HTML-CSS/25-le-centrage-css/
https://www.w3schools.com/css/css_align.asp
https://adsume.com/your-file-is-loading-please-wait/ a voir
https://juliencrego.com/astuces/exemples-dinterfaces-web-construites-avec-une-grille-css/
https://juliencrego.com/cours/css-et-la-disposition-en-grille-ou-grid-layout/
https://www.quackit.com/css/grid/examples/css_grid_website_layout_examples.cfm
https://www.quackit.com/html/
.mybox {
width: 100px;
height: 100px;
border: 5px solid #FFFFFF;
background-color: #FF0000;
}
HTML
<div class="mybox"></div>
<head>
<style>
body{
background-color:grey;
}
.box{
border: 5px white solid;
width:100px;
height:100px;
background-color: red;
}
</style>
</head>
<body>
<div class="box">
</div>
</body>
https://blog.hubspot.com/website/center-div-css#:~:text=In%20your%20HTML%2C%20add%20a,set%20vertical%2Dalign%20to%20middle.
https://la-cascade.io/articles/centrer-une-div-guide-complet
<style>
.container {
height: 200px;
position: relative;
border: 3px solid green;
}
.center {
margin: 0;
position: absolute;
top: 50%;
left: 50%;
-ms-transform: translate(-50%, -50%);
transform: translate(-50%, -50%);
}
</style>
<div class="container">
<div class="center">
<p>I am vertically and horizontally centered.</p>
</div>
</div>
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
#parent {
display: table;
width: 100%;
height: 200px;
border: 3px dashed #1c87c9;
text-align: center;
}
#child {
display: table-cell;
vertical-align: middle;
}
</style>
</head>
<body>
<div id="parent">
<div id="child">I am vertically centered</div>
</div>
</body>
</html>
https://www.w3docs.com/snippets/css/how-to-vertically-center-text-with-css.html super