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<?php $array = [1,2]; foreach($array as $a) { if ($a == 1) { $array[] = 3; } echo $a . "\n"; } echo "-----\n"; $array = [1,2]; foreach($array as &$a) { if ($a == 1) { $array[] = 3; $array[] = 4; } echo $a . "\n"; } echo "----------\n"; var_dump($array); reset($array); foreach($array as $a) { echo $a . "\n"; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.6 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 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
1 2 ----- 1 2 3 4 ---------- array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> &int(4) } 1 2 3 3
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 1 2 ----- 1 2 3 4 ---------- array(4) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> &int(4) } 1 2 3 3
preferences:
178.08 ms | 402 KiB | 201 Q