JavaScript fromCharCode() method

JavaScript's String object uses the fromCharCode() method to compose a string from the flexible number of arguments you pass - each of these is a Unicode value point (same as ASCII for the first 128 characters, which most notably includes the regular Latin alphabet, upper- and lowercase). var str = String.fromCharCode( 65 ); // 65 = uppercase 'A' alert( str );
To pass multiple character codes, just separate each of them with commas: var str = String.fromCharCode( 83, 67, 82, 73, 80, 84 ); alert( str ); // Click to run and reveal the string! ->
The PHP equivalent to JavaScript's fromCharCode() is a custom function, adapted from a PHP commenter, which relies on the "mb_convert_encoding()" multibyte string conversion function: function fromCharCode( $charCode ) { $strToConvert = '&#' . intval( $charCode ) . ';'; return mb_convert_encoding( $strToConvert, 'UTF-8', 'HTML-ENTITIES' ); } For a more modular approach, you could expand this same function to handle either a single argument, or an array of them (and cycles through, just like JavaScript's method does).
Sister method: charAt() returns the character found at the position index passed as argument. And charCodeAt() returns the Unicode value for the character found at that index.

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