现场演示：我的 HTML 文档

 
<!DOCTYPE html>
<html lang="en">
<head>
    <title>Deleting Empty PHP Array Values</title>
</head>
<body>
<pre>
​
<?php
$array = array("apple", "", 0, 2, null, -5, "0", "orange", 10, false);
echo "<h2>Original Array</h2>";
var_dump($array);
echo "<hr>";
 
// Filtering the array
$result = array_filter($array);
echo "<h2>Filtered Array</h2>";     
var_dump($result);
?>
​
</pre>