Find the character in the string
<!DOCTYPE html>
<html>
<body>
<?php
$string = "PHP is a server scripting language, and a powerful tool for making dynamic and interactive Web pages and it's so easy to learn.";
$length = strlen($string);
$check = ['v','i','s','h','a','l'];
$character_array = [];
for($i=0;$i<$length;$i++){
$ch = substr($string,$i,1);
if(in_array($ch,$check)){
if($character_array[$ch]){
$character_array[$ch]++;
}else{
$character_array[$ch]= 1;
}
}
}
ksort($character_array);
print_r($character_array);
?>
</body>
</html>
Thanks you for commenting your questions. I will see question and respond you.