This article shows how to add query parameters to a URL in a php script. It is aimed at the beginner to intermediate level PHP programmer but developers from other languages may find some useful information here. At first this seems like a simple enough task. Starting with the url as a string, just add the new parameters to the end. Yeah, that would be nice. It turns out that there are a few conditions that make the process just a bit more difficult. It’s still not a hard problem but there are enough special cases to make it interesting.

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There is some tweaking that we need to perform in order to make sure that Apache runs CakePHP applications smoothly. Many Apache installations may not require the following tweaking, as they might be set as default, but it is always a good idea to check if the following settings are present.

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The MVC (Model View Controller) pattern is a commonly used design pattern in software development, where the code is separated into three major parts: models, views, and controllers. The exact purpose of each part depends on the implementation, as it may vary from one framework to another. Here, we are going to describe the way CakePHP implements the MVC pattern. So, this is not a general discussion on MVC pattern, rather we are only going to see Cake’s own MVC implementation. As we have already mentioned, CakePHP separates the code into three separate parts: models, views, and controllers.

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What is CakePHP?

According to the official CakePHP website (http://cakephp.org):
“Cake is a rapid development framework for PHP which uses commonly known design patterns like Active Record, Association Data Mapping, Front Controller and MVC. Our primary goal is to provide a structured framework that enables PHP users at all levels to rapidly develop robust web applications, without any loss to flexibility.”
Someone who is new to frameworks might not understand parts of the definition. But understanding a few key terms will make the job much easier.

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This one is a must for developers and system admins. You need to know how long your site takes to load. Nobody sticks around waiting for a site to load anymore – there’s way too much content out there for that. Use this script to find out if your site is taking too long, and if it is, fix it.

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To get the difference between two time strings use this code

<?php

function timeDiff($firstTime,$lastTime)
{

// convert to unix timestamps
$firstTime=strtotime($firstTime);
$lastTime=strtotime($lastTime);

// perform subtraction to get the difference (in seconds) between times
$timeDiff=$lastTime-$firstTime;

// return the difference
return $timeDiff;
}

//Usage :
echo timeDiff("2002-04-16 10:00:00","2002-03-16 18:56:32");

?>

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If you want to get the current page URL, you can use the following code:

<?php
function curPageURL() {
 $pageURL = 'http';
 if ($_SERVER["HTTPS"] == "on") {$pageURL .= "s";}
 $pageURL .= "://";
 if ($_SERVER["SERVER_PORT"] != "80") {
  $pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
 } else {
  $pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
 }
 return $pageURL;
}
?>
<?php
  echo curPageURL();
?>

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