3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr("foo", ""));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0
Fatal error: Uncaught TypeError: substr(): Argument #2 ($offset) must be of type int, string given in /in/WVfeg:3 Stack trace: #0 /in/WVfeg(3): substr('foo', '') #1 {main} thrown in /in/WVfeg on line 3
Process exited with code 255.
Output for 8.4.15
/bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: substr() expects parameter 2 to be int, string given in /in/WVfeg on line 3 NULL
Output for 7.2.0 - 7.2.33
Warning: substr() expects parameter 2 to be integer, string given in /in/WVfeg on line 3 NULL

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199.81 ms | 410 KiB | 5 Q