3v4l.org

run code in 500+ PHP versions simultaneously
<?php $var = 'ABC0001'; $var ++; echo $var, "\n"; $var ++; echo $var, "\n"; echo "...\n"; $var = 'ABC9998'; $var ++; echo $var, "\n"; $var ++; echo $var, "\n"; $var ++; echo $var, "\n";
Output for 8.5.0 - 8.5.3
Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/l3OGS on line 5 ABC0002 Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/l3OGS on line 8 ABC0003 ... Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/l3OGS on line 14 ABC9999 Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/l3OGS on line 17 ABD0000 Deprecated: Increment on non-numeric string is deprecated, use str_increment() instead in /in/l3OGS on line 20 ABD0001
Output for 5.6.38 - 5.6.40, 7.0.33, 7.1.0 - 7.1.30, 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
ABC0002 ABC0003 ... ABC9999 ABD0000 ABD0001
preferences:
106.34 ms | 1574 KiB | 4 Q