Several commonly used empty removal, grouping, and debugging array functions in PHP_PHP Tutorial

dump() converts the array into an array format, which is useful for debugging
function dump($vars, $label = '', $return = false){
if (ini_get('html_errors')) {
$content = "

n"; <br>if ($label != '') { <br>$content .= "<strong>{$label} :</strong>n"; <br>} <br>$content .= htmlspecialchars(print_r($vars, true)); <br>$content .= "n

n";
} else {
$content = $ label . " :n" . print_r($vars, true);
}
if ($return) { return $content; }
echo $content;
return null;
}
array_remove_empty() removes empty elements from the array
function array_remove_empty(& $arr, $trim = true){
foreach ($arr as $key => $value) {
if (is_array($value)) {
array_remove_empty($arr[$key]);
} else {
$value = trim($value);
if ($value == '' ) {
unset($arr[$key]);
} elseif ($trim) {
$arr[$key] = $value;
}
}
}
}
array_chunk() PHP default function is to group functions evenly