Codifica una imagen a base 64

ImageToBase64.php

<?php

    //
    // By Jsn
    //

    // Get file
	function getFileData($file){
		$o = fopen($file,'r');
		$r = fread($o,filesize($file));
		fclose($o);
		return $r;
	}

    // Encode image file as base64
	function encodeBase64($data){
		$header = $r = "";
		$header = substr($data,0,10);
		if (substr($header,6,4)=="JFIF"){
			$header = 'data:image/jpg;base64,';
			goto jump;
		}
		if (substr($header,0,3)=="GIF"){
			$header = "data:image/gif;base64,";
			goto jump;
		}
		if (substr($header,1,3)=="PNG"){
			$header = "data:image/png;base64,";
		}
		jump:
		return $header.base64_encode($data);
	}

    // Return a Image as Base64
	function imgGetData($file){
		return encodeBase64(getFileData($file));
	}

?>