Hi, I'm trying to find some PHP equivalents of a few Javascript functions... I just looked all over for them and cant find them, here are the functions:

The fromCharCode() method converts Unicode values to characters.

Note: This method is a static method of the String object. The syntax is always String.fromCharCode() and not string.fromCharCode().
javascript Code:
  1. String.fromCharCode(n1, n2, ..., nX)





The charCodeAt() method returns the Unicode of the character at the specified index in a string.

The index of the first character is 0, and the index of the last character in a string called "txt", is txt.length-1.
javascript Code:
  1. string.charCodeAt(index)


All help is appreciated!