PHP syntax: sort an associative array by value with asort

Posted December 28, 2003 by Quinn McHenry in PHP programming

To sort an associative array by the array values, use asort.

asort($capitals);

An optional parameter (sort_flags) can be passed to asort to alter the way that it sorts the array. The following code will sort an associative array numerically by array value.

asort($ar, SORT_NUMERIC);

Without this option, the index values ’15, 2, 1′ would be sorted ‘1, 15, 2’ and with the SORT_NUMERIC option, the values would be sorted 1, 2, 15.

 

About Quinn McHenry

Quinn was one of the original co-founders of Tech-Recipes. He is currently crafting iOS applications as a senior developer at Small Planet Digital in Brooklyn, New York.
View more articles by Quinn McHenry

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