1) If you read a .csv file for download: use \xEF\xBB\xBF after headers and just before you echo file data. For example: echo “\xEF\xBB\xBF”; // UTF-8 BOM readfile($file); 2) If you echo per line use htmlspecialchars_decode to covert single and…
Tag: PHP
How to get file extension using PHP
A simple yet powerful approach to get file extension using PHP. We usually need to extract file extension from file name while uploading file so that we could generate new name and rename file to our convenience. We could create…
Useful php debug function to output data with line number
A very useful php debug function i like to use to print debug output to browser window. In some cases where i may not output the debug to browser window i use the same php debug function to receive debug…
Covert PHP config size values to bytes
Convert PHP config value (2M, 8M, 200K…) to bytes. Use full when converting values received, for an example, through ini_get(‘memory_limit’).
Ideal way to define directory separator in PHP
Ideal way to define directory separator in PHP // Directory separator if(!defined(‘DIRECTORY_SEPARATOR’)) { define(‘DIRECTORY_SEPARATOR’, strtoupper(substr(PHP_OS, 0, 3) == ‘WIN’) ? ‘\\’ : ‘/’); } // if
Creating and Parsing JSON data with PHP
What is JSON? JSON is ultra-weight data interchange data format used over the internet for transferring the data. While XML is a dominant data interchange format over the internet but JSON is less complex and light-weight data.
Caching large menus or header/footer links in WordPress
Even if you are not using some robust caching plugin or tool in wordpress you can cache small chunks of data using basic caching techniques of PHP. In my example i had been creating a few dozens of links in…
Creating a random string in PHP
Here’s a very useful function to generate a random string in php. I use this function quite often especially while working in core php projects.
How to debug a php application in production/live mode
How to debug a live website built in php? Here’s a basic, simple and custom method i usually use to debug live or production web applications (web sites). First of all i place the following lines of code in a…
Validating php multiple-value checkbox form element with javascript
In php a multiple-value form element such as checkbox is named suffixed with a set of square brackets. For example, My commonly used colors are: <form action=”index.php” name=”myform” method=”post” onsubmit=”return validate_form();”> <input type=”checkbox” name=”colors[]” value=”red” /> <input type=”checkbox” name=”colors[]” value=”green”…
