The array_intersect_key function simply compares the first array with the other array or arrays based on keys. It returns an associative array that only contains the result against matching keys. If the key in the first array is found in the rest of the arrays, it is included in the resultant array. What is the …
The array_intersect_assoc function is an advanced version of the array_intersect function which we studied in the previous tutorial. It compares both the keys and values of two or more arrays and returns the matching result. It compares the keys and values from the first array with the keys and values of other arrays and returns …
Recall the intersection of two sets that you studied in your school life. Similarly, array_intersect compares values of two arrays and returns the common values. This function can also intersect more than two arrays. The first array is compared with the other arrays and returns the common values i.e the values that are present in …
This function provides a very interesting use case for the PHP arrays. The developer may run into a situation where swapping of keys with values or vice versa is required. array_flip() function flips all the keys with their associated values. What is the syntax of the array_flip() function in PHP? Parameter Details array The array …
The array_filter function filters the array elements based on the user-defined function. array_filter function passes each value of the array to the user-defined function. The user-defined function returns true or false. If the returned value is true, it will be kept in the output array, else it will be removed from the output as the …
In the previous tutorial, we learned about the array_fill function that simply fills an array with values. The array_fill_keys function fills an array with values against the specified keys. What is the syntax of the array_fill_keys function in PHP? Parameters Details keys An array having elements used as keys – required value Specify the value …
The array_fill function simply fills an array with the provided values. This function is useful especially when we need to initialize an array with some dummy data. What is the syntax of the array_fill function in PHP? Parameters Details index Index of the array to start inserting the value at – required number Specify the …
As the name is suggesting, the array_diff_ukey function compares two or more arrays based on the keys. The keys are compared in the user-defined function. What is the syntax of the array_diff_ukey function in PHP? Parameters Details array1 The first array to compare with other arrays – required array2 Second array to make a comparison …
The array_diff_uassoc function returns the difference between two or more arrays based on the keys and values. But, here the main difference lies in this function is the user-defined function implementation for the comparison of keys and values. We will make the user_defined function concept super easy using the examples in this tutorial. What is …
In PHP, the array_diff_key() method compares two or more arrays and returns an array containing the differences depending on the keys. This method is useful for comparing arrays and determining which keys are present in one array but not in others. The array diff key() method has the following syntax: What is the syntax of …
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