- bin2hex: documentation ( source)
<?php
// This contains ASCII 0x00 aka \0
$data = "x\0y";
$pdo = new PDO( "sqlite:test", '', '', array( PDO::ATTR_PERSISTENT => false ) );
$result = $pdo->quote( $data );
print "Raw: " . $result . "\n";
print "Hex: " . bin2hex( $result ) . "\n";