Php Array Difference By Value. To put it another way array udiff compares a 0 to b 0 b 1 b 2 and b 3 using the provided callback function. Array udiff will walk through array values a and array values b and compare each value by using the passed in callback function.
Array diff array1 array2 array3 parameter. Computes the difference of arrays. Array udiff will walk through array values a and array values b and compare each value by using the passed in callback function.
If you store a string of keys in a database field and want to match them to a static array of values this is a quick way to do it without loops.
Array udiff will walk through array values a and array values b and compare each value by using the passed in callback function. Array diff array1 array2 array3 parameter. To put it another way array udiff compares a 0 to b 0 b 1 b 2 and b 3 using the provided callback function. Php 4 and above syntax.