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How to check if an email address exists without sending an email?

...here are two methods you can sometimes use to determine if a recipient actually exists: You can connect to the server, and issue a VRFY command. Very few servers support this command, but it is intended for exactly this. If the server responds with a 2.0.0 DSN, the user exists. VRFY user You can...
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PHP json_encode encoding numbers as strings

...e of the json_encode() function is a string. Regarding the MySQL returning all fields as strings, yes I have also encountered this specifically with PDO. The way I see it you should always cast values you expect to be numeric to integer (or float) in PHP to make sure, do not trust MySQL or any other...
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How to copy a file from one directory to another using PHP?

...o @henrywright, it do not create directories itself. You have to do it manually. check it on php manual – Haseeb Zulfiqar Sep 26 '16 at 12:56 ...
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How to get a one-dimensional scalar array as a doctrine dql query result?

... PHP < 5.5 You can use array_map, and since you only have on item per array, you can elegantly use 'current' as callback, instead of writing a closure. $result = $em->createQuery("SELECT a.id FROM Auction a")->getS...
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Asynchronous shell exec in PHP

...e got a PHP script that needs to invoke a shell script but doesn't care at all about the output. The shell script makes a number of SOAP calls and is slow to complete, so I don't want to slow down the PHP request while it waits for a reply. In fact, the PHP request should be able to exit without ter...
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How to disable XDebug

I think that my server became slow since I installed XDebug. So, in order to test my hypothesis I want to disable XDebug completely. I've been searching for tutorials on how to do this but I can't find such information. ...
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What is base 64 encoding used for?

...you have some binary data that you want to ship across a network, you generally don't do it by just streaming the bits and bytes over the wire in a raw format. Why? because some media are made for streaming text. You never know -- some protocols may interpret your binary data as control character...
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Can I use a hash sign (#) for commenting in PHP?

...HP file using hashes ( # ) for commenting. But today I realized that I actually can! I'm assuming there's a reason why everybody uses // instead though, so here I am. ...
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How to create a checkbox with a clickable label?

...can explain the comment @John left please do, because it makes no sense at all to me. – Wesley Murch Jul 30 '15 at 13:45 16 ...
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Window.open and pass parameters by post method

...').submit(); </script> Edit: To set the values in the form dynamically, you can do like this: function openWindowWithPost(something, additional, misc) { var f = document.getElementById('TheForm'); f.something.value = something; f.more.value = additional; f.other.value = misc; win...