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Is there a PHP function to remove certain array elements from an array?
E.g., I have an array (A) with values and another array (B) from which a need to remove values.
Want to remove the values in array A from array B?
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pop() function: This method is use to remove elements from the end of an array. shift() function: This method is use to remove elements from the start of an array. splice() function: This method is use to remove elements from the specific index of an array.
We can use the following JavaScript methods to remove an array element by its value. indexOf() – function is used to find array index number of given value. Return negavie number if the matching element not found. splice() function is used to delete a particular index value and return updated array.
The array_keys() is a built-in function in PHP and is used to return either all the keys of and array or the subset of the keys. Parameters: The function takes three parameters out of which one is mandatory and other two are optional.
Use array_diff()
$new_array = array_diff($arrayB, $arrayA);
will return an array with all the elements from $arrayB that are not in $arrayA.
To do this with associative arrays use array_diff_assoc().
To remove a single value use:
unset($array[$key]);
You can of course loop that to do the equivalent of the array functions but there's no point in that.
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