What are common pitfalls when trying to submit an array from a form to another page in PHP?

One common pitfall when trying to submit an array from a form to another page in PHP is not using the correct syntax to access the array elements in the receiving page. To solve this issue, you can use the $_POST superglobal array in PHP to access the submitted array values by specifying the array key. 

// Form page
<form action="process.php" method="post">
    <input type="text" name="myArray[]" value="value1">
    <input type="text" name="myArray[]" value="value2">
    <input type="text" name="myArray[]" value="value3">
    <button type="submit">Submit</button>
</form>

// Process page (process.php)
<?php
if(isset($_POST['myArray'])) {
    $myArray = $_POST['myArray'];
    
    // Access and loop through the array elements
    foreach($myArray as $value) {
        echo $value . "<br>";
    }
}
?>

Keywords

array form submission PHP serialization data transfer

Related Questions