TY_BCS_PHP_SLIP 4_1



Slip no. 4. Write a java Script that Accept a string from user. Pass this string as parameter to a function name ‘check_vowel’ on button click event and return the count of the number vowels within the string.


 
HTML file :
<html>
<head>
<style>
span
{
                color : red;
                font-size : 25px;
}
</style>

<script type = "text/javascript" >
                function check_vowels(str)
                {
                                var ob = false;
                                ob = new XMLHttpRequest();
                                ob.open("GET","slip4_Q1.php?string="+str);
                                ob.send();
                                ob.onreadystatechange=function()
                                {
                                                if(ob.readyState==4 && ob.status==200)
                                                {                                                                                                                                                                                                              document.getElementById("i").innerHTML=ob.responseText; 
                                                }
                                }             
                }             
</script>
</head>

<body>
<center>
<h3>Enter Sting: <input type="text" name="str" id="str" maxlength="20"></h3>
<input type="submit" value="Check Vowels" onclick="check_vowels(str.value)">
<br><br><span id="i"></span>
</center>
</body>
</html>

PHP file :
<?php
                $a=$_GET['string'];
                $l=strlen($a);
                $v_cnt=0;
                for($i=0;$i<$l;$i++)
                {
                                if(( $a[$i] == 'a') || ($a[$i] == 'e') || ($a[$i] == 'i') || ($a[$i] == 'o') || ($a[$i] == 'u') || ($a[$i] == 'A') || ($a[$i] == 'E') || ($a[$i] == 'I') || ($a[$i] == 'O') || ($a[$i] == 'U'))                             
                                $v_cnt++;
                }             
                echo "Total vowels are : $v_cnt";
?>

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