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PHP Array Reference : Sort the elements of the $a array using a user-defined comparison function
The usort() function sorts an array using a user-defined comparison function.
Parameter | Description |
---|---|
array | Required. Specifies the array to sort |
myfunction | Optional. A string that define a callable comparison function. The comparison function must return an integer <, =, or > than 0 if the first argument is <, =, or > than the second argument |
Return Value: | TRUE on success. FALSE on failure |
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PHP Version: | 4+ |
❮ PHP Array Reference