3v4l.org

run code in 300+ PHP versions simultaneously
<?php eval("echo \"One\n\";\n"); eval("namespace Bar;\n\necho \"Two\n\";\n"); eval("?><?php\necho \"Three\n\";\n"); eval("?><?php\nnamespace Bar;\n\necho \"Four\n\";\n");
Output for 7.2.0 - 7.2.34, 7.3.0 - 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 - 8.3.27, 8.4.1 - 8.4.14
One Two Three Four
preferences:
126.24 ms | 407 KiB | 5 Q