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<?php $stuff = ['a' => ['b' => 'c']]; $path = 'a.b'; $parts = explode('.', $path); $value = &$stuff; foreach ($parts as $part) { if (isset($value[$part])) { $value = &$value[$part]; } else { throw new \RuntimeException('fail at: ' . $part); } } var_dump($stuff); var_dump($value);
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
array(1) { ["a"]=> array(1) { ["b"]=> &string(1) "c" } } string(1) "c"
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(1) { ["a"]=> array(1) { ["b"]=> &string(1) "c" } } string(1) "c"
preferences:
171.86 ms | 402 KiB | 183 Q