The tool should have a user interface that allows the user to enter a string and select a function to perform on the string. The tool should support the following string functions: strlen, strrev, ...

Strlen() : Returns the length of a string (number of characters). Strpos() : searches for a specific text within a string. If a match is found, the function returns the character position of the first ...

String functions are the part of core PHP. These are used to manipulate string data. Following are some commonly used string functions used in PHP. These are: addslashes : Adds slashes to specified ...

<p>strpos() is one of the most useful PHP string functions. This function allows you to get the position in a string where another string (a substring) occurs.</p> <p>The parameters passed to strpos() ...