- var_dump: documentation ( source)
- array_keys: documentation ( source)
<?php
$a = [
"$pkgHandle",
"$appVersionRequired",
"$pkgVersion",
"$_SESSION",
"$_SESSION"
];
$found = [];
$grepped = array_keys($a, '$_SESSION');
if ($grepped) {
$success = false;
foreach ($grepped as $found_key) {
$found[] = $a[$found_key];
}
}
var_dump($found);