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<?php $array[] = array('first'=>'jake','last'=>'quattrocchi'); $array[] = array('first'=>'david'); foreach($array as $key=>$value){ $value['first'] = 'adfgadgadfg'; unset($key); unset($value); } var_dump($array); echo $key; var_dump($value);
Output for 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
array(2) { [0]=> array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> array(1) { ["first"]=> string(5) "david" } } Warning: Undefined variable $key in /in/tuoFS on line 13 Warning: Undefined variable $value in /in/tuoFS on line 14 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 array(2) { [0]=> array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> array(1) { ["first"]=> string(5) "david" } } Warning: Undefined variable $key in /in/tuoFS on line 13 Warning: Undefined variable $value in /in/tuoFS on line 14 NULL
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
array(2) { [0]=> array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> array(1) { ["first"]=> string(5) "david" } } Notice: Undefined variable: key in /in/tuoFS on line 13 Notice: Undefined variable: value in /in/tuoFS on line 14 NULL
Output for 7.3.32 - 7.3.33
array(2) { [0]=> array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> array(1) { ["first"]=> string(5) "david" } } NULL
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
array(2) { [0]=> array(2) { ["first"]=> string(4) "jake" ["last"]=> string(11) "quattrocchi" } [1]=> array(1) { ["first"]=> string(5) "david" } } Notice: Undefined variable: key in /in/tuoFS on line 13 Notice: Undefined variable: value in /in/tuoFS on line 14 NULL

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