Validation of url in javascript

Question

I have created a small form which have one field for input the url and the other one is submit button and i want to validate the input url through the javascript so that in case of correct url it will show an alert box.Is it possible with javascript? If yes , please help me to getting this through the below code.

<form name="lln-form" class="llnfrm" id="lln-form" id="bulk-form" action="" method="post" onsubmit="javascript:event.preventDefault();return  submit_ajax();">
<fieldset style="">
<label>Enter URL:</label>
<input type="text" name="url" placeholder = "enter your url">
</fieldset>
<input class="lln-button button button-primary" type="submit" name="lln-submit" id="llnbuton" value="Save" onsubmit = "saveURL()"; />
</form>
<script type="text/javascript">
function saveURL()
{
<?php
        if(isset($POST['url'])==true&&empty($POST['url'])==false){
$url=$POST['url'];
if(filter_var('$url',FILTER_VALIDATE_URL)==true)
    echo "VAlid URL";
}
    ?>
}

Possible duplicate of Javascript regular expression to validate URL — NibblyPig
– NibblyPig, Commented Oct 18, 2016 at 6:23
if(filter_var($url,FILTER_VALIDATE_URL)==true) instead of if(filter_var('$url',FILTER_VALIDATE_URL)==true) — Pradyut Manna
– Pradyut Manna, Commented Oct 18, 2016 at 6:23
stackoverflow.com/questions/1303872/… duplication of thiso one. — Mitesh Shah
– Mitesh Shah, Commented Oct 18, 2016 at 6:25

Veer · Accepted Answer · 2016-10-18 06:26:18Z

2

You can try

var txturl=document.getElementById('TXTURL');
valid=txturl.value.search(/^([\w-]+(?:\.[\w-]+)*).((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2,4})?)$/i );
if(valid!=0){
    alert("Invalid URL");
}

answered Oct 18, 2016 at 6:26

Veer

7,1361 gold badge16 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Validation of url in javascript

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related