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What is the difference between is_a and instanceof?

... Update As of PHP 5.3.9, the functionality of is_a() has changed. The original answer below states that is_a() must accept an Object as the first argument, but PHP versions >= 5.3.9 now accept an optional third boolean argument $allow_s...
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Can JavaScript connect with MySQL?

... No, JavaScript can not directly connect to MySQL. But you can mix JS with PHP to do so. JavaScript is a client-side language and your MySQL database is going to be running on a server share | impr...
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Memcached vs APC which one should I choose? [closed]

...lways use an opcode cache, which APC is (also APC will get integrated into php6 iirc, so why not start using it now). You can/should use both for different purposes. share | improve this answer ...
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Single vs Double quotes (' vs ")

...b Development often consists of many programming languages. HTML, JS, CSS, PHP, ASP, RoR, Python, ect. Because of this we have many syntax conventions for different programing languages. Often habbits from one language will follow us to other languages, even if it is not considered "proper" i.e. com...
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Converting a UNIX Timestamp to Formatted Date String

Using PHP, I want to convert UNIX timestamps to date strings similar to this: 2008-07-17T09:24:17Z 9 Answers ...
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Cross-Origin Request Headers(CORS) with PHP headers

I have a simple PHP script that I am attempting a cross-domain CORS request: 11 Answers ...
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How to minify php page html output?

I am looking for a php script or class that can minify my php page html output like google page speed does. 13 Answers ...
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Convert SVG image to PNG with PHP

... and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick: $usmap = '/path/to/blank/us-map.svg'; $im = new Imagick(); $svg = file_get_contents($usmap); /*loop to color each state as needed, something like*/ $idColorArray = array( "AL" =&gt...
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How to set my phpmyadmin user session to not time out so quickly? [duplicate]

... To increase the phpMyAdmin Session Timeout, open config.inc.php in the root phpMyAdmin directory and add this setting (anywhere). $cfg['LoginCookieValidity'] = <your_new_timeout>; Where <your_new_timeout> is some number larger...
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Multiple file upload in php

...me[]" Input element must have multiple="multiple" or just multiple In your PHP file use the syntax "$_FILES['inputName']['param'][index]" Make sure to look for empty file names and paths, the array might contain empty strings. Use array_filter() before count. Here is a down and dirty example (sho...