3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = "12345"; echo $var[0] . "-" . substr($var,1); echo str_replace($var[0], $var[0].'-', $var)
Output for 5.4.13
Parse error: syntax error, unexpected end of file, expecting ',' or ';' in /in/jBrVE on line 7
Process exited with code 255.
Output for 5.4.0 - 5.4.12
Parse error: syntax error, unexpected end of file, expecting ',' or ';' in TSY2Q on line 7
Process exited with code 255.
Output for 5.3.23
Parse error: syntax error, unexpected $end, expecting ',' or ';' in /in/jBrVE on line 7
Process exited with code 255.
Output for 5.3.0 - 5.3.22
Parse error: syntax error, unexpected $end, expecting ',' or ';' in TSY2Q on line 7
Process exited with code 255.
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169.28 ms | 1395 KiB | 45 Q