3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f($req, $opt = 25, ...$params) { printf('$req: %d; $opt: %d; number of params: %d'."\n", $req, $opt, count($params)); } f(1); f(1, 2); f(1, 2, 3); f(1, default, 3, 4); f(1, 2, 3, 4, 5); ?>
Output for 5.4.0 - 5.4.24
Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/BaNMV on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE in /in/BaNMV on line 2
Process exited with code 255.
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179.23 ms | 1395 KiB | 61 Q