0104.php

<?php

echo 'Hello world';
echo '<br>';
function reverseStr(string $str): string
{
    // return strrev($str);
    $val = explode(' ', $str);
    // print_r($val);
    $output = [];
    foreach ($val as $key => $value) {
        // echo strrev($value);
        array_push($output, strrev($value));
    }
    // print_r($output);
    return implode(' ', $output);
    // return 'Hi';
}
echo reverseStr('My Name this Khan');
echo '<br>';
function reverseStr2(string $str): string
{
    return (implode(' ', array_map('strrev', explode(' ', $str))));
}
echo reverseStr2('Jay mataji');

function reverseAry(array $ary): array
{
    print_r($ary);
    return array_reverse($ary);
    return $ary;
}
print_r(reverseAry([1, 2, 3, 4]));
echo '<br>';
function printerError(string $str): string
{
    // echo "myname \" khan \"";
    // echo ord('a');
    // echo ord('m');
    $Ary      = str_split($str);
    $errorVal = 0;
    foreach ($Ary as $key => $value) {
        # code...
        $num = ord($value);
        if ($num >= 97 && $num <= 109) {

        } else {
            $errorVal++;
        }
    }
    // echo $errorVal;
    // echo strlen($str);
    // return "printer_error(s) => \"" . $errorVal . '/' . strlen($str) . "\"";
    return $errorVal . '/' . strlen($str);
}
echo printerError('aaabbbbhaijjjm');