3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach(range(1,1000000) as $i) { $y = ''; $x = array($y); }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.1, 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 8.1.2 - 8.1.27
Fatal error: Out of memory (allocated 2097152) (tried to allocate 33554440 bytes) in /in/Bm4GX on line 3 mmap() failed: [12] Cannot allocate memory mmap() failed: [12] Cannot allocate memory
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 32 bytes) in /in/Bm4GX on line 3
Process exited with code 255.
preferences:
229.88 ms | 402 KiB | 327 Q