PHP Snippets
PHP snippets that would help in solving quick and easy problems
Check if file exists in Symfony2
Check if file exists in Symfony2 If you want want to check if file exists in Symfony2 and which is not a twig template, you have to create a Twig Extension service and add a file_exists() function or whatever you want to call it in twig. This tutorial is more specific to the issue we have at hand,
PHP Simple HTML DOM Parser
PHP Simple HTML DOM Parser In this tutorial I will show you a great way to parse a webpage with plain PHP, in the same way you do with jquery. The syntax is very native and natural, and you will feel like home using it but first let’s thank the author of this library S.C. Chen
Transform a csv file to associative array in PHP
Transform a csv file to associative array in PHP There are a lot of examples on how to take a CSV file and put it in an array, but the main problem about them is that the header and the rest of the content from the csv are placed on separate keys, both on the
How to sort a multidimensional array based on key?
How to sort a multidimensional array based on key? First of all, let’s give credit to the person who wrote this function. The problem ? Let’s say you have a multidimensional array and you want to sort based on a key that is not on the first level of the array, how would you do
How to detect a page refresh with PHP?
How to detect a page refresh with PHP? Sometimes you want to detect if the page was refreshed using “F5” key, or right click and “Reload” or any other method available. Either way, this can be detected somehow from server side. In this snippet, I will show you how to do this with PHP. Method
Symfony mapped entities error while generating getters and setters
Symfony mapped entities error while generating getters and setters If you ever used Symfony php framework, and you wanted to generate through command line the setters and getters for your entity after you defined everything in your entities files, and you got an error like this:
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1 |
Namespace "Apn\ApnBundle\Entity\Users.php" does not contain any mapped entities. |
you probably want to know the solution of
How to invoke dynamically a class method in PHP?
How to invoke dynamically a class method in PHP? Today will talk about calling a method from inside class, however you are in the situation of calling a method dynamically in a loop, for each element of an array. To do this we will make use of a php function called call_user_func.Using this function, you
Remove html tags and malicious content in php
Remove html tags and malicious content in php Let’s say you have some data that are coming from the client side (a form submit, an ajax call, etc) and you want to be sure that you are not inserting in the database malformed data with html tags or other stuff. In the end you would need
How to save image from URL using PHP
How to save image from URL using PHP You have an image in a URL, something like “http://www.yourhowto.net/wp-content/uploads/2012/09/mysql-java-jdbc1.jpg“, and you want to save that image in your computer, but you want to obtain that directly from PHP. You can use 2 methods for this, one is using CURL and one using fopen directly. First method
How to calculate age from a given birthdate in php
How to calculate age from a given birthdate in php? Has anyone needed to get the user age based on the profile birthdate? Well you probably thought about it now. It is possible to this and its user friendly to let someone know how old they are. Of course some of you may not want
