3v4l.org

run code in 300+ PHP versions simultaneously
<?php print json_encode(null, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n"; print json_encode(false, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n"; print json_encode(0, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n"; print json_encode('text', JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n"; print json_encode(['text'], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n"; print json_encode(['key' => 'value'], JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n"; $x = new StdClass; $x->key = 'value'; print json_encode($x, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . "\n";
Output for 5.6.0 - 5.6.40, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
null false 0 "text" ["text"] {"key":"value"} {"key":"value"}
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 null false 0 "text" ["text"] {"key":"value"} {"key":"value"}

preferences:
228.26 ms | 402 KiB | 290 Q