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run code in 300+ PHP versions simultaneously
<?php $str = ''; for ($i = 0; $i < 1e4; $i++) { $str .= md5(time()); } echo strlen($str); $memory = memory_get_usage(true); substr($str, 0); echo memory_get_usage(true)-$memory;
Output for 5.2.1 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.0
3200000
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
320000 Fatal error: Call to undefined function memory_get_usage() in /in/YkXEZ on line 9
Process exited with code 255.
Output for 4.4.5 - 4.4.9
320000 Fatal error: Call to undefined function: memory_get_usage() in /in/YkXEZ on line 9
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
320000 Fatal error: Call to undefined function: memory_get_usage() in /in/YkXEZ on line 9
Process exited with code 255.
Output for 4.3.0 - 4.3.1
320000 Fatal error: Call to undefined function: memory_get_usage() in /in/YkXEZ on line 9
preferences:
121.08 ms | 401 KiB | 212 Q