17. PHP Array Functions-4 | array_diff variations with user-defined callback function | ATIBlog
ATI Blog PHP Tutorial in Hindi : Array Functions part - 4.
In this part we cover:
array_diff() – variations with user defined comparison function.
array_udiff_assoc() - like array_diff_assoc()
additional function for values comparison
array_diff_uassoc() - like array_diff_assoc()
additional function for keys comparison
array_diff_ukey() - like array_diff_key()
additional function for key comparison
array_udiff() - like array_diff()
additional function for values comparison
1. array_udiff_assoc()
Same like array_diff_assoc , to check both keys and values.
Need to pass a last parameter as a function for values comparison.
The function should return 0, negative value, positive value.
This function check for “is_different” then , identifies 0 as false, +ve or –ve as true.
2. array_diff_uassoc()
Same like array_diff_assoc , to check both keys and values.
Need to pass a last parameter as a function for keys comparison.
The function should return 0, negative value, positive value.
This function check for “is_different” then , identifies 0 as false, +ve or –ve as true.
3. array_diff_ukey()
Same like array_diff_key , to check keys only.
Need to pass a last parameter as a function for keys comparison.
The function should return 0, negative value, positive value.
This function check for “is_different” then , identifies 0 as false, +ve or –ve as true.
4. array_udiff ()
Same like array_diff , to check values only.
Need to pass a last parameter as a function for values comparison.
The function should return 0, negative value, positive value.
This function check for “is_different” then , identifies 0 as false, +ve or –ve as true.
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