PHP HTML Checkbox
From w3cyberlearnings
Contents |
PHP works with HTML Checkbox
Checkbox permits multiple select option at a time.
Syntax single checkbox
<input type="checkbox" name="book" value="java"/>Java<br />
Syntax single checkbox with default check
<input type="checkbox" name="book" value="java" checked="checked"/>Java<br />
Syntax multiple checkbox
- Check out the example for understand how the multiple check work.
<input type="checkbox" name="book[]" value="java1"/>Java<br /> <input type="checkbox" name="book[]" value="java2"/>Java<br /> <input type="checkbox" name="book[]" value="java3"/>Java<br /> <input type="checkbox" name="book[]" value="java4" checked="checked">Java<br />
Example 1
<?php
if ($_POST) {
echo '<pre>';
print_r($_POST);
echo '</pre>';
}
?>
<html>
<head>
<title>Checkbox</title>
</head>
<body>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<i>Option</i><br/>
<input type="checkbox" name="book" value="java" checked="checked">Java<br />
<input type="checkbox" name="people" value="people">People<br />
<input type="checkbox" name="forest" value="forest">Forest<br />
<input type="checkbox" name="small" value="Tree">Tree<br /> <br/>
<i>School</i><br/>
<input type="checkbox" name="school[]" value="gsu">GSU<br />
<input type="checkbox" name="school[]" value="lsu" checked="checked">LSU<br />
<input type="checkbox" name="school[]" value="mit">MIT <br/>
<input type="submit" name="submit"/>
</form>
</body>
</html>
Output
Example 2
<?php
$str = "";
if ($_POST) {
foreach ($_POST as $name => $value) {
if ($name == "book" && $value != "") {
$str.= "<li> The book name {$value} is great!</li>";
} else if ($name == "people" && $value != "") {
$str .="<li> Please, take care our people </li>";
} else if ($name == "forest" && $value != "") {
$str .= "<li> Please, take care our tree and planet!</li>";
} else if ($name == "small" && $value != "") {
$str .="<li> Those small trees are not that simple to take care.</li>";
} else if ($name == "school" && count($value) > 0) {
$str .= '<li> school name: ' . implode(',', $value) . '</li>';
}
}
if ($str != "") {
echo "<ul>" . $str . "</ul>";
} else {
echo "Please try again!";
}
}
?>
<html>
<head>
<title>Checkbox</title>
</head>
<body>
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
<i>Option</i><br/>
<input type="checkbox" name="book" value="java" checked="checked">Java<br />
<input type="checkbox" name="people" value="people">People<br />
<input type="checkbox" name="forest" value="forest">Forest<br />
<input type="checkbox" name="small" value="Tree">Tree<br /> <br/>
<i>School</i><br/>
<input type="checkbox" name="school[]" value="gsu">GSU<br />
<input type="checkbox" name="school[]" value="lsu" checked="checked">LSU<br />
<input type="checkbox" name="school[]" value="mit">MIT <br/>
<input type="submit" name="submit"/>
</form>
</body>
</html>
Output
Related Links
- HTML Textbox
- HTML Checkbox
- HTML Radio
