What are some common pitfalls to avoid when passing arrays through forms in PHP?

One common pitfall to avoid when passing arrays through forms in PHP is not using proper naming conventions for array inputs. To ensure that the array is correctly passed through the form, you should use square brackets in the input name attribute. For example, if you have an array named "colors", the input name should be "colors[]". 

<form method="post" action="process_form.php">
    <input type="checkbox" name="colors[]" value="red"> Red
    <input type="checkbox" name="colors[]" value="blue"> Blue
    <input type="checkbox" name="colors[]" value="green"> Green
    <button type="submit">Submit</button>
</form>

Keywords

array forms PHP serialization validation

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