Free Online Tutorials | Tutorials, Resources and Snippets

PHP: Convert IP Range to CIDR

phptuts August 17, 2012

Read first: PHP: Convert CIDR to ipaddress range PHP: check valid ipaddress or CIDR notation range This function work done with small IP range ex:…

Simple Javascript OOP tutorial

2tuts August 17, 2012

JavaScript Objects

An object is a collection of Methods and properties.
Javascript has predefined object types such as: Array, Boolean, Date, Function, Image, Number, Object, Option, RegExp, or String it also allows you to create your own user defined objects. Read more about Simple Javascript OOP tutorial …

PHP: check valid ipaddress or CIDR notation range

phptuts August 17, 2012

This function checks for a valid IP address or CIDR notation address range. Example of usage:

PHP: Convert CIDR to ipaddress range

phptuts August 17, 2012

This function takes an IP address and CIDR netmask (e.g. 102.68.1.0/25), and calculate IP address range in that netblock. Example: result: array(2) { [0]=> string(10)…

PHP: Convert Numeric Character Reference to UTF8

2tuts August 16, 2012

Some functions to convert Numeric Character Reference (NCR) to UTF8: Method 01 Ex: Result: La Fenêtre de Soleil Alternative methods: Method 02 Update 08/23/2018: if…

PHP: Crop image function (part 2)

phptuts August 16, 2012

Read first: PHP: Crop image function We can save to new file: Online demo We get the result: http://www.demo.tutorialspots.com/crop/logo.png Now, we can crop image on…

PHP: Crop image function

phptuts August 16, 2012

See our logo Step 1: detect filetype (gif, jpeg, png) use function getimagesize result: array(6) { [0]=> int(300) [1]=> int(107) [2]=> int(3) [3]=> string(24) “width=”300″…

Function sys_getloadavg in PHP < 5.1.3

phptuts August 14, 2012

According to the document of PHP official website, http://php.net/sys_getloadavg sys_getloadavg (PHP 5 >= 5.1.3) sys_getloadavg — Gets system load average So, it’s only for PHP…