Base64 Encoding/Decoding Tool by Thomas Horsten

Encoded text

Decoded text

<?php 
	if (!isset($ashex)) {
		echo htmlentities(base64_decode($text),ENT_NOQUOTES);
	} else {
		$wordsz = (int)$wordsz;
		$endian = (int)$endian;
		$decoded = base64_decode($text);
		$len = strlen($decoded);
		printf("Dumping %d (0x%x) bytes\n\n", $len, $len);
		for ($pos = 0; $pos < $len; $pos += 16) {
			printf("%04x: ", $pos);
			for ($n = 0; $n < 16; $n += $wordsz) {
				if ($pos + $n < $len) {   
					if ($endian < 0) {
						for ($o = $wordsz-1; $o >= 0; $o--) {
							if ($pos+$n+$o >= $len) {
								printf("??");
							} else {
								printf("%02x", ord(substr($decoded, $pos+$n+$o, 1)));
							}
						}
					} else {
						for ($o = 0; $o < $wordsz; $o++) {
							if ($pos+$n+$o >= $len) {
								printf("??");
							} else {
								printf("%02x", ord(substr($decoded, $pos+$n+$o, 1)));
							}
						}
					}
					echo " ";
				} else {
					for ($o=$wordsz-1; $o >= 0; $o--) {
						echo "  ";
					}
					echo " ";
				}
			}
			echo "  |";
			for ($n = 0; $n < 16; $n += 1) {
				if ($pos + $n < $len) {
					$c = substr($decoded, $pos+$n, 1);
					if ( (ord($c) >= 0x20 && ord($c) <= 0x7e) ||
						 (ord($c) >= 0xa0 && ord($c) <= 0xfe)) { 
						echo htmlentities($c, ENT_NOQUOTES);
					} else {
						echo ".";
					}
				} else {
					echo " ";
				}
				if ( ($n > 0) && ($n < 15) && ($wordsz > 1) && (($n+1) % $wordsz == 0) ) {
					echo "|";
				}
			}
			echo "|\n";

}
	}

Encoded text

Decoded text

Original text

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