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<?php $name = array(); $name_reference = $name['name']; // => GENERATE NOTICE, $name_reference = NULL $name = false; $name_reference = $name['name']; // => NO ERROR ($name = false), $name_reference = NULL var_dump($name_reference);
Output for 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined array key "name" in /in/rNGq9 on line 4 Warning: Trying to access array offset on false in /in/rNGq9 on line 8 NULL
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 Warning: Undefined array key "name" in /in/rNGq9 on line 4 Warning: Trying to access array offset on false in /in/rNGq9 on line 8 NULL
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Warning: Undefined array key "name" in /in/rNGq9 on line 4 Warning: Trying to access array offset on value of type bool in /in/rNGq9 on line 8 NULL
Output for 7.4.0 - 7.4.33
Notice: Undefined index: name in /in/rNGq9 on line 4 Notice: Trying to access array offset on value of type bool in /in/rNGq9 on line 8 NULL
Output for 7.3.32 - 7.3.33
NULL
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 - 7.3.31
Notice: Undefined index: name in /in/rNGq9 on line 4 NULL
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