Filed in: PHP/MySQL, Programming Techniques
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You want to compare two arrays in PHP. Basically what you need is to make sure that both the arrays contain the same set of values may or may not be in the same order. You can use the built-in PHP function, array_diff to compute the difference of arrays. But this function just checks whether all the values of array1 is in array2 and if not returns the...
We call it Short Circuit Evaluation (also known as minimal evaluation, or McCarthy evaluation) when a programming language DOES NOT evaluate/execute the second operand in a condition. if the first operand alone can fully determine the outcome of that condition.
We have been using this concept in our codes always. All PHP guys must be familiar with this...
The world is slowly adopting HTML5 and it is time to move towards it. HTML5 incorporates many features which were achievable only using third party plug-ins. I am not talking about HTML5 in detail. I just want to give you some light on a great feature which HTML5 ships with, “Canvas”!
“Canvas” which is an HTML5 tag, allows you...
Being a flash programmer, I have always had this concern. The way a flash application works differs from a php application. We don’t really need to worry about protecting the PHP code because the code is interpreted in the server and only the html codes are sent to the client browser. But a Flash engine basically lies in the user browser and the AS2...
I have an array with many values and I need to do a search to find all the values that match a pattern. We have functions like in_array & array_search in PHP, but these functions basically try to match the exact needle value in the array. I need to use my Regular Expression Pattern and find all the array values that match the regex pattern.
The...
In this tutorial, learn about the get_browser() PHP function and its configuration. We’ll learn how to use Gary Keith’s browser information database (browscap.ini) with the PHP browscap directive.
I wanted one of my web applications to have a different appearance on mobile phones and devices. I didn’t really want to set up an entirely...
Often we search for records in a database table for fetching records that were created or modified on a particular date or between two dates. We match against a date field and add multiple conditions to find records with a date field value ranging between two dates.
It would look something like this:
Select * from tables where CREATE_TIME >= "2007-03-14...
When we need to swap the values of two variables, we use a third variable temporarily to hold the data between swapping. Something like this:
<?php
$tmp = $a;
$a = $b;
$b = $tmp;
?>
Here is another way without using a temp or a third variable.
<?php
list($b, $a) = array($a, $b);
?>
And if you want to make it a function:
<?php
function...
Filed in: PHP/MySQL, Programming Techniques
The Auth Component in CakePHP redirects the user to the log-in page when a user tries to access any protected pages in the application. The default log-in page is set by defining the loginAction variable in the beforeFilter function in your UsersController or AppController.
But if you have used plug-ins in your application, and if a user tries to access...
Developers normally use functions that use Regular Expression to convert under_scored strings in to CamelCased strings. Usage of Regular Expression is quite heavy. We can use a simple yet powerful method to convert these strings to CamelCase without using RegEx in PHP.
Here is the method:
echo join(””, array_map(“ucwords”, explode(‘_’,...
Filed in: PHP/MySQL, Programming Techniques
