3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function __construct() { echo $this->formatColumnsWithValues(['key' => 'value', 'foo' => 'bar', 'empty' => '']); } private function formatColumnsWithValues(array $kRow): string { $kRow = array_filter($kRow); array_walk($kRow, fn (&$v, $k) => $v = sprintf("%s: %s\n", $k, $v)); return implode("</p><p>", $kRow); } } $a = new A();
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.4, 8.3.6 - 8.3.7
key: value </p><p>foo: bar
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 key: value </p><p>foo: bar
Output for 7.3.0 - 7.3.33
Parse error: syntax error, unexpected '&' in /in/4GKCW on line 13
Process exited with code 255.
preferences:
107.69 ms | 401 KiB | 158 Q