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run code in 300+ PHP versions simultaneously
<?php $tmp = sys_get_temp_dir(); touch($tmp.'/file'); symlink($tmp.'/file', $tmp.'/link1'); symlink($tmp.'/link1', $tmp.'/link2'); var_dump(readlink($tmp.'/link2'));
Output for 5.5.24, 5.5.29, 5.5.34 - 5.5.35, 5.6.7, 5.6.10, 5.6.12 - 5.6.13, 5.6.21 - 5.6.28, 7.0.5, 7.0.20, 7.1.0 - 7.1.26, 7.1.28 - 7.1.29, 7.1.31, 7.1.33, 7.2.0 - 7.2.6, 7.2.8, 7.2.11, 7.2.13 - 7.2.21, 7.2.23, 7.2.29 - 7.2.33, 7.3.0 - 7.3.2, 7.3.4 - 7.3.6, 7.3.8, 7.3.10, 7.3.12 - 7.3.31, 7.4.3 - 7.4.26, 7.4.30, 8.0.0 - 8.0.13, 8.0.30, 8.1.21 - 8.1.28, 8.2.8 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
string(10) "/tmp/link1"
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 string(10) "/tmp/link1"
Output for 5.4.2 - 5.4.45, 5.5.25 - 5.5.28, 5.5.30 - 5.5.33, 5.6.8 - 5.6.9, 5.6.11, 5.6.14 - 5.6.20, 7.0.0 - 7.0.4, 7.0.6, 7.1.27, 7.1.30, 7.1.32, 7.2.7, 7.2.9 - 7.2.10, 7.2.12, 7.2.22, 7.2.24 - 7.2.25, 7.3.3, 7.3.7, 7.3.11, 7.4.0, 7.4.32, 8.0.15, 8.0.28 - 8.0.29, 8.1.16, 8.1.18 - 8.1.20, 8.2.4 - 8.2.7
Warning: symlink(): File exists in /in/tA5CE on line 6 Warning: symlink(): File exists in /in/tA5CE on line 7 string(10) "/tmp/link1"
Output for 7.3.32 - 7.3.33, 7.4.27 - 7.4.29, 7.4.33, 8.0.14, 8.0.16 - 8.0.27, 8.1.0 - 8.1.15, 8.1.17, 8.2.0 - 8.2.3
Warning: symlink(): File exists in /in/tA5CE on line 6 Warning: symlink(): File exists in /in/tA5CE on line 7 Warning: readlink(): Invalid argument in /in/tA5CE on line 9 bool(false)
Output for 7.3.9
Warning: symlink(): File exists in /in/tA5CE on line 6 Warning: readlink(): No such file or directory in /in/tA5CE on line 9 bool(false)

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195.19 ms | 401 KiB | 272 Q