Q:
How to remove empty values from an array in PHP
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Php programming
Use the PHP
array_filter()functionYou can simply use the PHP
array_filter()function to remove or filter empty values from an array. This function typically filters the values of an array using a callback function.However, if no callback function is specified, all empty entries of array will be removed, such as
""(an empty string),0(0 as an integer),0.0(0 as a float),"0"(0 as a string),NULL,FALSEandarray()(an empty array). Let's try out an example to understand how it actually works:In the above example the values 0 and "0" are also removed from the array. If you want to keep them, you can define a callback function as shown in the following example:
The callback function myFilter() is called for each element of the array. If myFilter() returns TRUE, then that element will be appended to the result array, otherwise not.
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