What are some best practices for debugging issues related to in_array() in PHP?

When debugging issues related to in_array() in PHP, it is important to check the data types of the elements being compared, as in_array() performs loose comparison. Additionally, ensure that the array being searched is correctly formatted and populated with the expected values. To troubleshoot, you can use var_dump() or print_r() to inspect the array and the value being searched for. 

// Example code snippet to debug in_array() related issues
$value = 5;
$array = [1, 2, 3, '5', 6];

// Check data types of elements in array
foreach ($array as $element) {
    if ($element == $value) {
        echo "Element found in array!";
    }
}

// Use var_dump() or print_r() to inspect array and value
var_dump(in_array($value, $array));

Keywords

in_array debugging PHP array troubleshooting

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