3v4l.org

run code in 300+ PHP versions simultaneously
<?php $fh = fopen('php://temp', 'w+'); fwrite($fh, '123'); var_dump(ftell($fh)); stream_filter_append($fh, 'zlib.deflate', STREAM_FILTER_WRITE, 9); fwrite($fh, 'abc'); var_dump(ftell($fh)); fseek($fh, 0); var_dump(fread($fh, 1024)); fclose($fh);
Output for 7.4.14 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(3) int(3) string(12) "123JLJ��"
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(3) int(3) string(12) "123JLJ��"
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.13, 8.0.0
int(3) int(3) string(3) "123"
preferences:
130.16 ms | 402 KiB | 176 Q