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run code in 300+ PHP versions simultaneously
<?php var_dump( substr_count ('haystack', 'tack', 0, 0), substr('haystack', 0, 0) );
Output for 7.1.5 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 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
int(0) string(0) ""
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 7.1.0
int(1) string(0) ""
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20
Warning: substr_count(): Length should be greater than 0 in /in/bAu27 on line 4 bool(false) string(0) ""
preferences:
184.75 ms | 410 KiB | 5 Q