Passing Numeric Values in a Querystring : Query String « Form « PHP






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  2. Form
  3. Query String

Passing Numeric Values in a Querystring

 
<html>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
</head>
<body>
  <div align="center">
    <p>Click a link to change the text color of the verbiage below:</p>
    <a href="index.php?color=1">Green</a><br />
    <a href="index.php?color=2">Red</a><br />
    <a href="index.php?color=3">Blue</a><br />
    <a href="index.php">Reset</a>
    <?php
      if (isset ($_GET['color'])){
        $color = intval ($_GET['color']);
      } else {
        $color = "";
      }
      if ($color == 1){
        $fontcolor = "00FF00";
      } elseif ($color == 2){
        $fontcolor = "FF0000";
      } elseif ($color == 3){
        $fontcolor = "0000FF";
      } else {
        $fontcolor = "000000";
      }
      ?><p style="color: #<?php echo $fontcolor; ?>; font-weight: bold;">Hello World!</p><?php
    ?>
  </div>
</body>
</html>








Related examples in the same category

1.Passing Complex Values in a Querystring
2.Passing String Values in a Querystring
3.parse_str() function parses string into various variables, setting the variables in the current scope.
4.parse_str.php