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run code in 300+ PHP versions simultaneously
<?php $max = 100; $arr = array_fill(0, $max, 1); $mem = memory_get_usage(true); $count = 0; foreach ($arr as $key=>$val) { $count ++; $arr[$max+1] = 9999; } echo $count.': '.memory_get_usage(true)-$mem;
Output for 7.4.0
Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /in/9QZkN on line 13 Notice: A non well formed numeric value encountered in /in/9QZkN on line 13 -2097052
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.25, 7.3.0 - 7.3.12
Notice: A non well formed numeric value encountered in /in/9QZkN on line 13 -2097052
Output for 7.0.0 - 7.0.20
-2097052
Output for 5.2.1 - 5.2.17, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
-262044
Output for 5.3.0 - 5.3.29
-786332
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0
Fatal error: Call to undefined function memory_get_usage() in /in/9QZkN on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: memory_get_usage() in /in/9QZkN on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: memory_get_usage() in /in/9QZkN on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: memory_get_usage() in /in/9QZkN on line 5
preferences:
169.73 ms | 401 KiB | 264 Q