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Is PHP's count() function O(1) or O(n) for arrays?

Does count() really count the all the elements of a PHP array, or is this value cached somewhere and just gets retrieved? ...
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PHP Pass variable to next page

... You can add the variable in the link to the next page: <a href="page2.php?varname=<?php echo $var_value ?>">Page2</a> This will create a GET variable. Another way is to include a hidden field in a form that submits to page two: <form method="get" action="page2.php"> ...
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nginx showing blank PHP pages

I have setup an nginx server with php5-fpm. When I try to load the site I get a blank page with no errors. Html pages are served fine but not php. I tried turning on display_errors in php.ini but no luck. php5-fpm.log is not producing any errors and neither is nginx. ...
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In PHP what does it mean by a function being binary-safe?

In PHP what does it mean by a function being binary-safe ? 3 Answers 3 ...
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Import file size limit in PHPMyAdmin

I have changed all the php.ini parameters I know: upload_max_filesize , post_max_size . 27 Answers ...
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PHP memory profiling

What's a good way to profile a PHP page's memory usage? For example, to see how much memory my data is using, and/or which function calls are allocating the most memory. ...
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Laravel Controller Subfolder routing

... For Laravel 5.3 above: php artisan make:controller test/TestController This will create the test folder if it does not exist, then creates TestController inside. TestController will look like this: <?php namespace App\Http\Controllers\test;...
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How do I send a POST request with PHP?

... CURL-less method with PHP5: $url = 'http://server.com/path'; $data = array('key1' => 'value1', 'key2' => 'value2'); // use key 'http' even if you send the request to https://... $options = array( 'http' => array( 'header' =...
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Difference between float and double in php?

... There is no difference in PHP. float, double or real are the same datatype. At the C level, everything is stored as a double. The real size is still platform-dependent. See the manual for more details: http://www.php.net/manual/en/language.types.flo...
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How to include() all PHP files from a directory?

In PHP can I include a directory of scripts? 12 Answers 12 ...