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<?php $arr = array(); $i = 0; while($i < 1000000) { ++$i; $arr[] = $i; } var_dump($arr);

Verbose script

This script was stopped because it was generating too much output

Output for 5.3.0 - 5.4.25
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 32 bytes) in /in/87TLe on line 6
Process exited with code 255.
Output for 5.2.1 - 5.2.17
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 71 bytes) in /in/87TLe on line 7
Process exited with code 255.