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<?php $available_templates = [ '' => 'Placeholder', 404 => '404', 'single' => 'Single Post', ]; $merge = array_merge( [ '' => 'Default template', ], $available_templates ); $replace = array_replace( $available_templates, [ '' => 'Default template', ] ); var_dump( $merge ); var_dump( $replace );
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.4, 8.3.6 - 8.3.15, 8.4.1 - 8.4.2
array(3) { [""]=> string(11) "Placeholder" [0]=> string(3) "404" ["single"]=> string(11) "Single Post" } array(3) { [""]=> string(16) "Default template" [404]=> string(3) "404" ["single"]=> string(11) "Single Post" }
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(3) { [""]=> string(11) "Placeholder" [0]=> string(3) "404" ["single"]=> string(11) "Single Post" } array(3) { [""]=> string(16) "Default template" [404]=> string(3) "404" ["single"]=> string(11) "Single Post" }

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155.7 ms | 408 KiB | 5 Q