Php Array Diff. Array diff returns a mathematical difference a k a. The array diff is a built in function of php and this function is implemented for calculating or comparing the difference between two or more arrays.
Function comparecars car obja car objb return obja getid objb getid diff array udiff allcars busycars comparecars. Fulldiff array merge array diff array1 array2 array diff array2 array1. The array diff is an inbuilt function in php ans is used to calculate the difference between two or more arrays.
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.
Function comparecars car obja car objb return obja getid objb getid diff array udiff allcars busycars comparecars. The array diff is a built in function of php and this function is implemented for calculating or comparing the difference between two or more arrays. The reason being that array diff will only give you the values that are in array1 but not array2 not the other way around. Those that elements that are in either a or b but aren t in both a and b.