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In magento how to give validation to telephone field in contact us page

telephone field should accept only numbers and - symbol other should not accept similarly name field should not allow special character and white space

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To validate an input fiel, you just need a varienForm:

<script type="text/javascript">
     var loginForm = new varienForm('loginForm');
</script>

This form registers on the submit event of the <form>. Then you just need to add the validate- class you want to use, have a look into Validation.addAllThese() in /js/prototype/validation.js:414 or into the great article fishpig wrote.

  • I have already used this two validate-number( Please enter a valid number in this field)validate-phoneStrict Please enter a valid phone number. For example (123) 456-7890 or 123-456-7890) but my need is it should accept num like 1234566778 or (123)-23456 or 123-4567 or +54534343434 – vidhya Jan 16 '14 at 12:49
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Inchoo wrote a great article about form validation that you can read here.

On the frontend you can add a class to the input, for example validate-phoneLax. In the controller receiving the post values you can use Zend validation like, for example,

if (!Zend_Validate::is($postdata['telephone'], 'NotEmpty')) {
   $errors[] = $helper->__('Please enter a phone number');
}

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