3v4l.org

run code in 300+ PHP versions simultaneously
<?php function parseDbString(string $value = 'Looking for a good {{ $pippo }}'){ $lookup = ['pippo' => 'Pizza']; return preg_replace_callback('/{{ \$(.*?) }}/', function($m) use ($lookup) { return $lookup[$m[1]] ?? $m[0]; // null coalescing operator provides fallback }, $value); } echo parseDbString();
Output for 7.1.0 - 7.1.23, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Looking for a good Pizza
Output for 5.6.38
Fatal error: Default value for parameters with a class type hint can only be NULL in /in/FpQJL on line 2
Process exited with code 255.
preferences:
74.92 ms | 407 KiB | 5 Q