php string length, php string functions - PHP Tutorial - 9

What is String Function in PHP ?
A PHP string function is used to manipulate the string, using function. In php have many string functions, which is used to modify a string easily, using some function. These string functions are already pre-defined in php. In php string functions, it is must a string or test value, it cannot manipulate the other data type value. There are many string functions in php. But in this video we just showing a example of only four string functions;

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