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run code in 300+ PHP versions simultaneously
<?php var_dump('aa' == 0); var_dump(0 == 'aa'); var_dump('0' == 0); var_dump(0 == '0'); var_dump('aa' === 0); var_dump(0 === 'aa'); var_dump('0' === 0); var_dump(0 === '0');
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
bool(false) bool(false) bool(true) bool(true) bool(false) bool(false) bool(false) bool(false)
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 bool(false) bool(false) bool(true) bool(true) bool(false) bool(false) bool(false) bool(false)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
bool(true) bool(true) bool(true) bool(true) bool(false) bool(false) bool(false) bool(false)

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