[Keyboard char to Ascii] Take care of different ASCII Code returned by a single caracter depending on Keyboard layout. #encoding #php #ascii

convertSameCaracterToSameAscii.php

<?php
/*
 * Accept array or string
 */
function convertSameCaracterToSameAscii($string)
{
	$tab_chr = array() ;
	for($control = 0; $control < 32; $control++) {
	    if ($control != 9 && $control != 10) {
	        $tab_chr[]= chr($control) ;
	    }
	}

	return str_replace($tab_chr, '', $string);
}

// Source : http://php.net/manual/en/function.chr.php#107742

testCase.php

<?php
function getAsciiCode($string)
{
	$implode = false;
	if (!is_array($string))
	{
		$implode = true;
		$string = explode(' ', $string);
	}

	$c = count($string);
	for($i=0;$i<$c;$i++)
	{
		$output[] = ord($string[$i]);
	}

	if ($implode)
	{
		return implode(' ', $output);
	}
	return $output;
}


/*
 * usage with array
 */

/*Print input*/
$caracters = ["?","?","?"];
echo "Array input : \r\n";
print_r($caracters);
echo "\r\n";
print_r(getAsciiCode($caracters));
echo "\r\n";

/*Convert*/
$string = convertSameCaracterToSameAscii($caracters);

/*Print output*/
echo "Array output : \r\n";
print_r($string);
print_r(getAsciiCode($string));
echo "\r\n";


/*
 * usage with string
 */

/*Print input*/
$caracters = "? ? ?";
echo "String input : \r\n";
print_r($caracters);
echo "\r\n";
print_r(getAsciiCode($caracters));
echo "\r\n";

/*Convert*/
$string = convertSameCaracterToSameAscii($caracters);

/*Print output*/
echo "String output : \r\n";
print_r($string);
print_r(getAsciiCode($string));
echo "\r\n";