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Using PHP with Socket.io

Is it possible to use Sockets.io on the client side and communicate with a PHP based application on the server? Does PHP even support such a 'long-lived connection' way of writing code? ...
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Why a function checking if a string is empty always returns true? [closed]

... '' will return true if you pass is numeric 0 and a few other cases due to PHP's automatic type conversion. You should not use the built-in empty() function for this; see comments and the PHP type comparison tables. share ...
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How to extract a floating number from a string [duplicate]

... [-+]? # optional sign ... (?: ... (?: \d* \. \d+ ) # .1 .12 .123 etc 9.1 etc 98.1 etc ... | ... (?: \d+ \.? ) # 1. 12. 123. etc 1 12 123 etc ... ) ... # followed by optional exponent part if desired ... (?: [Ee] [+-]? \d+ ) ? ... """ >>> rx = re...
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PHP file_get_contents() and setting request headers

With PHP, is it possible to send HTTP headers with file_get_contents() ? 7 Answers 7...
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PHP append one array to another (not array_push or +)

... Another way to do this in PHP 5.6+ would be to use the ... token $a = array('a', 'b'); $b = array('c', 'd'); array_push($a, ...$b); // $a is now equals to array('a','b','c','d'); This will also work with any Traversable $a = array('a', 'b'); $b ...
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PHP foreach change original array values

... In PHP, passing by reference (&) is ... controversial. I recommend not using it unless you know why you need it and test the results. I would recommend doing the following: foreach ($fields as $key => $field) { if (...
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How to copy a file from one directory to another using PHP?

Say I've got a file test.php in foo directory as well as bar . How can I replace bar/test.php with foo/test.php using PHP ? I'm on Windows XP, a cross platform solution would be great but windows preferred. ...
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How to get the last char of a string in PHP?

...ers" as input string and I want the result to be "s". how can I do that in PHP? 11 Answers ...
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Generating a random password in php

I am trying to generate a random password in php. 22 Answers 22 ...
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Download multiple files as a zip-file using php

How can I download multiple files as a zip-file using php? 4 Answers 4 ...