Use PHP functions in JavaScript

JavaScript array_search

Searches the array for a given value and returns the corresponding key if successful

function array_search (needle, haystack, argStrict) {
    // Searches the array for a given value and returns the corresponding key if successful  
    // 
    // version: 909.322
    // discuss at: http://phpjs.org/functions/array_search    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // *     example 1: array_search('zonneveld', {firstname: 'kevin', middle: 'van', surname: 'zonneveld'});
    // *     returns 1: 'surname' 
    var strict = !!argStrict;
    var key = '';
 
    for (key in haystack) {        if ((strict && haystack[key] === needle) || (!strict && haystack[key] == needle)) {
            return key;
        }
    }
     return false;
}

external links: original PHP docs | raw js source

Examples

Running

1	array_search('zonneveld', {firstname: 'kevin', middle: 'van', surname: 'zonneveld'});

Should return

'surname'

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

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