{"id":5556,"date":"2022-08-29T11:31:53","date_gmt":"2022-08-29T06:01:53","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-php-usort-item-missing-keys-to-top-duplicate\/"},"modified":"2022-08-29T11:31:53","modified_gmt":"2022-08-29T06:01:53","slug":"solved-php-usort-item-missing-keys-to-top-duplicate","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-php-usort-item-missing-keys-to-top-duplicate\/","title":{"rendered":"[Solved] PHP usort item missing keys to top [duplicate]"},"content":{"rendered":"

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return 1;<\/code> in your first if there makes no sense – returning 1 means, $a is supposed to be considered greater than $b. So whenever either one of them is missing that value, you always say the first one should be considered the greater one.<\/p>\n

The return value of the callback function only decides, whether $a should be considered less, equal or greater than $b. So if $a is missing the property, but $b has it – then you need to return -1, to make $a come before $b in the final result. If $a has it, and $b doesn’t – then you need to return 1. And if the both have it or are both missing it – then you need to continue comparing them, by your secondary comparison criterion.<\/p>\n<\/p><\/div>\n

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solved PHP usort item missing keys to top [duplicate] <\/p>\n","protected":false},"excerpt":{"rendered":"

[ad_1] return 1; in your first if there makes no sense – returning 1 means, $a is supposed to be considered greater than $b. So whenever either one of them is missing that value, you always say the first one should be considered the greater one. The return value of the callback function only decides, … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[339,561],"class_list":["post-5556","post","type-post","status-publish","format-standard","hentry","category-solved","tag-php","tag-sorting"],"yoast_head":"\n[Solved] PHP usort item missing keys to top [duplicate] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-php-usort-item-missing-keys-to-top-duplicate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] PHP usort item missing keys to top [duplicate] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] return 1; in your first if there makes no sense – returning 1 means, $a is supposed to be considered greater than $b. 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