Since I’m mentioning the site, I definitely suggest browsing over to it if you are looking for further reading about regular expressions including sample code and reference material.
Also, have a look at a free online regular expression tool by Derek Slager. $ For starters, you’ll want to make sure that you set your expression to ignore the case, or capital letters in a URL will cause it to fail.
Now I will explain regular expression for validating url with or without http in JQuery, Java Script.
I think it's ok to get most of url and if you want an ideal answer, it will be more complicated and there is no sense.
But if they enter a correct email address and then type some text after the correct extension its not catching that error. Get email suffix (.net, .org, etc...) from email using Regular Expressions Does anyone have a code snippet that could do this in VB. Required Field Validator and Regular Expression Validator Hi I'm new to . It appears as though they could really save some development time but I've come across something that's annoying me.
If you are unsure of your PHP version you can run php -v from the command line if you have command line PHP installed, or create a PHP file with the following contents and navigate to it using your web browser: There is a lot of debate about whether using a regular expression is a good idea when doing URL validation.
If you are uncertain and looking for a guide then this may help: If you are using a version of PHP that is older than PHP 5.2: - Use the regular expression approach If you are using PHP 5.2.13 or PHP 5.3.2 and need URLs with dashes to validate: - Use the regular expression approach If you don't fall into one of the above categories: - Use the filter_var() approach Note: Some have complained that using the PHP filter_var() function is too permissive and allows URLs that should not validate.