3v4l.org

run code in 300+ PHP versions simultaneously
<?php function do($input){ $output = str_replace("hello","howdy",$input); return $output; } echo "here's the message: " . do("hello world"); ?>
Output for 5.4.0 - 5.4.21
Parse error: syntax error, unexpected 'do' (T_DO), expecting identifier (T_STRING) or '(' in /in/G7NR0 on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_DO, expecting T_STRING or '(' in /in/G7NR0 on line 3
Process exited with code 255.
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176.9 ms | 1395 KiB | 57 Q