3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start('assert'); echo 'phpinfo()===ob_flush()' ob_end_flush();
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.30, 5.6.8 - 5.6.15
Parse error: syntax error, unexpected 'ob_end_flush' (T_STRING), expecting ',' or ';' in /in/hJvBJ on line 5
Process exited with code 255.
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204.84 ms | 943 KiB | 69 Q