3v4l.org

run code in 300+ PHP versions simultaneously
<?php $exts = get_loaded_extensions(); $total = 0; foreach ($exts as $ext) { $f = get_extension_funcs($ext); $total += count($f); } $a = get_defined_functions(); $n = count($a['internal']); $total += $n; echo $total, "\n", $n;

preferences:
33.55 ms | 402 KiB | 5 Q