MySQL modify field value allow NULL

December 19, 2013

Columns are nullable by default. As long as the column is not declared UNIQUE or NOT NULL . However, things may change during development or to prevent insert error. Thus, run this comman, example:

PHP operator == vs ===

December 17, 2013

The operator == casts between two different types if they are different, while the === operator performs a ‘typesafe comparison’. That means that it will only return true if both operands have the same type and the same value. Examples: However, two instances of the same class do NOT match the === operator. Example:

JSON value not showing in HTML by PHP

December 16, 2013

There are few possibility why JSON data not being displayed properly. To debug your data, use If print_r shows empty or nothing, use Output: string ‘{"en":"Home","fr":"Office","cn":"bar"}’ (length=1 Possibility 1) – json data being encoded to html code. Some CMS will encoded the json data output. To solve this html entity issue, decode the data like […]

Processing PHP array with json jquery $.each() get key value

December 11, 2013

A simple start will be, example array Output: “1″ Another example given array: Output: “136438349186fwjbr is test3″ etc….