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 ...

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, ...

<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() ...