3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = [ "_1444734871078_78" => [ ["attribute" => "enabled", "value" => "1"], ["attribute" => "animal_skin", "value" => ""], ["attribute" => "brand", "value" => ""], ["attribute" => "care", "value" => ""], ["attribute" => "collection", "value" => ""], ["attribute" => "color", "value" => ""], ["attribute" => "commodity_code", "value" => ""], ["attribute" => "description", "value" => ""], ["attribute" => "fashion", "value" => ""], ["attribute" => "fit", "value" => ""], ["attribute" => "gender", "value" => ""], ["attribute" => "heel_height", "value" => ""], ["attribute" => "heel_type", "value" => ""], ["attribute" => "lining", "value" => ""], ["attribute" => "material", "value" => ""], ["attribute" => "name", "value" => ""], ["attribute" => "original_season_code", "value" => ""], ["attribute" => "product_type", "value" => ""], ["attribute" => "season_code", "value" => ""], ["attribute" => "shape", "value" => ""], ["attribute" => "skutype", "value" => ""], ["attribute" => "sole", "value" => ""], ["attribute" => "stamp", "value" => ""], ["attribute" => "style", "value" => ""], ["attribute" => "sub_category", "value" => ""], ["attribute" => "web_category_1", "value" => ""], ["attribute" => "web_category_2", "value" => ""], ["attribute" => "web_category_3", "value" => ""], ["attribute" => "web_category_4", "value" => ""], ["attribute" => "web_exclusive", "value" => ""], ["attribute" => "web_exclusive", "value" => ""], ["attribute" => "family", "value" => ""], ["attribute" => "back_in_stock", "value" => ""], ["attribute" => "bag_depth", "value" => ""], ["attribute" => "bag_height", "value" => ""], ["attribute" => "bag_strap_drop", "value" => ""], ["attribute" => "bag_width", "value" => ""], ["attribute" => "best_seller", "value" => ""], ["attribute" => "colour_group", "value" => ""], ["attribute" => "insock", "value" => ""], ["attribute" => "last", "value" => ""], ["attribute" => "limited_edition", "value" => ""], ["attribute" => "line", "value" => ""], ["attribute" => "made_in_britain", "value" => ""], ["attribute" => "made_in_italy", "value" => ""], ["attribute" => "new_season_offers", "value" => ""], ["attribute" => "newin", "value" => ""], ["attribute" => "offer", "value" => ""], ["attribute" => "preorders", "value" => ""], ["attribute" => "rand", "value" => ""], ["attribute" => "sale", "value" => ""], ["attribute" => "short_description", "value" => ""], ["attribute" => "sole_edge", "value" => ""], ["attribute" => "trim", "value" => ""], ["attribute" => "visible", "value" => ""], ["attribute" => "related_fit", "value" => ""], ["attribute" => "url_key", "value" => ""], ["attribute" => "colour_group", "value" => ""], ] ]; var_dump(serialize($foo));
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 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
string(3666) "a:1:{s:17:"_1444734871078_78";a:58:{i:0;a:2:{s:9:"attribute";s:7:"enabled";s:5:"value";s:1:"1";}i:1;a:2:{s:9:"attribute";s:11:"animal_skin";s:5:"value";s:0:"";}i:2;a:2:{s:9:"attribute";s:5:"brand";s:5:"value";s:0:"";}i:3;a:2:{s:9:"attribute";s:4:"care";s:5:"value";s:0:"";}i:4;a:2:{s:9:"attribute";s:10:"collection";s:5:"value";s:0:"";}i:5;a:2:{s:9:"attribute";s:5:"color";s:5:"value";s:0:"";}i:6;a:2:{s:9:"attribute";s:14:"commodity_code";s:5:"value";s:0:"";}i:7;a:2:{s:9:"attribute";s:11:"description";s:5:"value";s:0:"";}i:8;a:2:{s:9:"attribute";s:7:"fashion";s:5:"value";s:0:"";}i:9;a:2:{s:9:"attribute";s:3:"fit";s:5:"value";s:0:"";}i:10;a:2:{s:9:"attribute";s:6:"gender";s:5:"value";s:0:"";}i:11;a:2:{s:9:"attribute";s:11:"heel_height";s:5:"value";s:0:"";}i:12;a:2:{s:9:"attribute";s:9:"heel_type";s:5:"value";s:0:"";}i:13;a:2:{s:9:"attribute";s:6:"lining";s:5:"value";s:0:"";}i:14;a:2:{s:9:"attribute";s:8:"material";s:5:"value";s:0:"";}i:15;a:2:{s:9:"attribute";s:4:"name";s:5:"value";s:0:"";}i:16;a:2:{s:9:"attribute";s:20:"original_season_code";s:5:"value";s:0:"";}i:17;a:2:{s:9:"attribute";s:12:"product_type";s:5:"value";s:0:"";}i:18;a:2:{s:9:"attribute";s:11:"season_code";s:5:"value";s:0:"";}i:19;a:2:{s:9:"attribute";s:5:"shape";s:5:"value";s:0:"";}i:20;a:2:{s:9:"attribute";s:7:"skutype";s:5:"value";s:0:"";}i:21;a:2:{s:9:"attribute";s:4:"sole";s:5:"value";s:0:"";}i:22;a:2:{s:9:"attribute";s:5:"stamp";s:5:"value";s:0:"";}i:23;a:2:{s:9:"attribute";s:5:"style";s:5:"value";s:0:"";}i:24;a:2:{s:9:"attribute";s:12:"sub_category";s:5:"value";s:0:"";}i:25;a:2:{s:9:"attribute";s:14:"web_category_1";s:5:"value";s:0:"";}i:26;a:2:{s:9:"attribute";s:14:"web_category_2";s:5:"value";s:0:"";}i:27;a:2:{s:9:"attribute";s:14:"web_category_3";s:5:"value";s:0:"";}i:28;a:2:{s:9:"attribute";s:14:"web_category_4";s:5:"value";s:0:"";}i:29;a:2:{s:9:"attribute";s:13:"web_exclusive";s:5:"value";s:0:"";}i:30;a:2:{s:9:"attribute";s:13:"web_exclusive";s:5:"value";s:0:"";}i:31;a:2:{s:9:"attribute";s:6:"family";s:5:"value";s:0:"";}i:32;a:2:{s:9:"attribute";s:13:"back_in_stock";s:5:"value";s:0:"";}i:33;a:2:{s:9:"attribute";s:9:"bag_depth";s:5:"value";s:0:"";}i:34;a:2:{s:9:"attribute";s:10:"bag_height";s:5:"value";s:0:"";}i:35;a:2:{s:9:"attribute";s:14:"bag_strap_drop";s:5:"value";s:0:"";}i:36;a:2:{s:9:"attribute";s:9:"bag_width";s:5:"value";s:0:"";}i:37;a:2:{s:9:"attribute";s:11:"best_seller";s:5:"value";s:0:"";}i:38;a:2:{s:9:"attribute";s:12:"colour_group";s:5:"value";s:0:"";}i:39;a:2:{s:9:"attribute";s:6:"insock";s:5:"value";s:0:"";}i:40;a:2:{s:9:"attribute";s:4:"last";s:5:"value";s:0:"";}i:41;a:2:{s:9:"attribute";s:15:"limited_edition";s:5:"value";s:0:"";}i:42;a:2:{s:9:"attribute";s:4:"line";s:5:"value";s:0:"";}i:43;a:2:{s:9:"attribute";s:15:"made_in_britain";s:5:"value";s:0:"";}i:44;a:2:{s:9:"attribute";s:13:"made_in_italy";s:5:"value";s:0:"";}i:45;a:2:{s:9:"attribute";s:17:"new_season_offers";s:5:"value";s:0:"";}i:46;a:2:{s:9:"attribute";s:5:"newin";s:5:"value";s:0:"";}i:47;a:2:{s:9:"attribute";s:5:"offer";s:5:"value";s:0:"";}i:48;a:2:{s:9:"attribute";s:9:"preorders";s:5:"value";s:0:"";}i:49;a:2:{s:9:"attribute";s:4:"rand";s:5:"value";s:0:"";}i:50;a:2:{s:9:"attribute";s:4:"sale";s:5:"value";s:0:"";}i:51;a:2:{s:9:"attribute";s:17:"short_description";s:5:"value";s:0:"";}i:52;a:2:{s:9:"attribute";s:9:"sole_edge";s:5:"value";s:0:"";}i:53;a:2:{s:9:"attribute";s:4:"trim";s:5:"value";s:0:"";}i:54;a:2:{s:9:"attribute";s:7:"visible";s:5:"value";s:0:"";}i:55;a:2:{s:9:"attribute";s:11:"related_fit";s:5:"value";s:0:"";}i:56;a:2:{s:9:"attribute";s:7:"url_key";s:5:"value";s:0:"";}i:57;a:2:{s:9:"attribute";s:12:"colour_group";s:5:"value";s:0:"";}}}"
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 string(3666) "a:1:{s:17:"_1444734871078_78";a:58:{i:0;a:2:{s:9:"attribute";s:7:"enabled";s:5:"value";s:1:"1";}i:1;a:2:{s:9:"attribute";s:11:"animal_skin";s:5:"value";s:0:"";}i:2;a:2:{s:9:"attribute";s:5:"brand";s:5:"value";s:0:"";}i:3;a:2:{s:9:"attribute";s:4:"care";s:5:"value";s:0:"";}i:4;a:2:{s:9:"attribute";s:10:"collection";s:5:"value";s:0:"";}i:5;a:2:{s:9:"attribute";s:5:"color";s:5:"value";s:0:"";}i:6;a:2:{s:9:"attribute";s:14:"commodity_code";s:5:"value";s:0:"";}i:7;a:2:{s:9:"attribute";s:11:"description";s:5:"value";s:0:"";}i:8;a:2:{s:9:"attribute";s:7:"fashion";s:5:"value";s:0:"";}i:9;a:2:{s:9:"attribute";s:3:"fit";s:5:"value";s:0:"";}i:10;a:2:{s:9:"attribute";s:6:"gender";s:5:"value";s:0:"";}i:11;a:2:{s:9:"attribute";s:11:"heel_height";s:5:"value";s:0:"";}i:12;a:2:{s:9:"attribute";s:9:"heel_type";s:5:"value";s:0:"";}i:13;a:2:{s:9:"attribute";s:6:"lining";s:5:"value";s:0:"";}i:14;a:2:{s:9:"attribute";s:8:"material";s:5:"value";s:0:"";}i:15;a:2:{s:9:"attribute";s:4:"name";s:5:"value";s:0:"";}i:16;a:2:{s:9:"attribute";s:20:"original_season_code";s:5:"value";s:0:"";}i:17;a:2:{s:9:"attribute";s:12:"product_type";s:5:"value";s:0:"";}i:18;a:2:{s:9:"attribute";s:11:"season_code";s:5:"value";s:0:"";}i:19;a:2:{s:9:"attribute";s:5:"shape";s:5:"value";s:0:"";}i:20;a:2:{s:9:"attribute";s:7:"skutype";s:5:"value";s:0:"";}i:21;a:2:{s:9:"attribute";s:4:"sole";s:5:"value";s:0:"";}i:22;a:2:{s:9:"attribute";s:5:"stamp";s:5:"value";s:0:"";}i:23;a:2:{s:9:"attribute";s:5:"style";s:5:"value";s:0:"";}i:24;a:2:{s:9:"attribute";s:12:"sub_category";s:5:"value";s:0:"";}i:25;a:2:{s:9:"attribute";s:14:"web_category_1";s:5:"value";s:0:"";}i:26;a:2:{s:9:"attribute";s:14:"web_category_2";s:5:"value";s:0:"";}i:27;a:2:{s:9:"attribute";s:14:"web_category_3";s:5:"value";s:0:"";}i:28;a:2:{s:9:"attribute";s:14:"web_category_4";s:5:"value";s:0:"";}i:29;a:2:{s:9:"attribute";s:13:"web_exclusive";s:5:"value";s:0:"";}i:30;a:2:{s:9:"attribute";s:13:"web_exclusive";s:5:"value";s:0:"";}i:31;a:2:{s:9:"attribute";s:6:"family";s:5:"value";s:0:"";}i:32;a:2:{s:9:"attribute";s:13:"back_in_stock";s:5:"value";s:0:"";}i:33;a:2:{s:9:"attribute";s:9:"bag_depth";s:5:"value";s:0:"";}i:34;a:2:{s:9:"attribute";s:10:"bag_height";s:5:"value";s:0:"";}i:35;a:2:{s:9:"attribute";s:14:"bag_strap_drop";s:5:"value";s:0:"";}i:36;a:2:{s:9:"attribute";s:9:"bag_width";s:5:"value";s:0:"";}i:37;a:2:{s:9:"attribute";s:11:"best_seller";s:5:"value";s:0:"";}i:38;a:2:{s:9:"attribute";s:12:"colour_group";s:5:"value";s:0:"";}i:39;a:2:{s:9:"attribute";s:6:"insock";s:5:"value";s:0:"";}i:40;a:2:{s:9:"attribute";s:4:"last";s:5:"value";s:0:"";}i:41;a:2:{s:9:"attribute";s:15:"limited_edition";s:5:"value";s:0:"";}i:42;a:2:{s:9:"attribute";s:4:"line";s:5:"value";s:0:"";}i:43;a:2:{s:9:"attribute";s:15:"made_in_britain";s:5:"value";s:0:"";}i:44;a:2:{s:9:"attribute";s:13:"made_in_italy";s:5:"value";s:0:"";}i:45;a:2:{s:9:"attribute";s:17:"new_season_offers";s:5:"value";s:0:"";}i:46;a:2:{s:9:"attribute";s:5:"newin";s:5:"value";s:0:"";}i:47;a:2:{s:9:"attribute";s:5:"offer";s:5:"value";s:0:"";}i:48;a:2:{s:9:"attribute";s:9:"preorders";s:5:"value";s:0:"";}i:49;a:2:{s:9:"attribute";s:4:"rand";s:5:"value";s:0:"";}i:50;a:2:{s:9:"attribute";s:4:"sale";s:5:"value";s:0:"";}i:51;a:2:{s:9:"attribute";s:17:"short_description";s:5:"value";s:0:"";}i:52;a:2:{s:9:"attribute";s:9:"sole_edge";s:5:"value";s:0:"";}i:53;a:2:{s:9:"attribute";s:4:"trim";s:5:"value";s:0:"";}i:54;a:2:{s:9:"attribute";s:7:"visible";s:5:"value";s:0:"";}i:55;a:2:{s:9:"attribute";s:11:"related_fit";s:5:"value";s:0:"";}i:56;a:2:{s:9:"attribute";s:7:"url_key";s:5:"value";s:0:"";}i:57;a:2:{s:9:"attribute";s:12:"colour_group";s:5:"value";s:0:"";}}}"

preferences:
171.59 ms | 409 KiB | 198 Q