PHP method for detecting user languages

PHP method for detecting user languages

This article describes how PHP detects user languages. Share it with you for your reference. The details are as follows:

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Function getPreferredLanguage (){ $ Langs = array (); If (isset ($ _ SERVER ['HTTP _ ACCEPT_LANGUAGE ']) { // Break up string into pieces (ages and q factors) Preg_match_all ('/([a-z] {} (-[a-z })?) \ S * (; \ s * q \ s * = \ s * (1 | 0 \. [0-9] + ))? /I ', $ _ SERVER ['HTTP _ ACCEPT_LANGUAGE'], $ lang_parse ); If (count ($ lang_parse [1]) { // Create a list like "en" = & gt; 0.8 $ Langs = array_combine ($ lang_parse [1], $ lang_parse [4]); // Set default to 1 for any without q factor Foreach ($ langs as $ lang => $ val ){ If ($ val = '') $ langs [$ lang] = 1; } // Sort list based on value Arsort ($ langs, SORT_NUMERIC ); } } // Extract most important (first) Foreach ($ langs as $ lang => $ val) {break ;} // If complex language simplify it If (stristr ($ lang, "-") {$ tmp = explode ("-", $ lang); $ lang = $ tmp [0];} Return $ lang; }

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