Code Area PHP

How to do Type Conversion in PHP

Type conversion is nothing but change the data type of a variable one type to another. PHP automatically convert data type one to another whenever possible. For example if you assign string value into a variable then the variable automatically become into string variable . But sometime this automatic type conversion is lead unexpected result. For that case we need to convert the data type by manually. I hope you will enjoy it.

 * @Author: Sohel Rana
 * @URL:
 * @Description: This is simple example of type conversion

$stringVar = "10 Hello World"; //Integer variable
echo gettype($stringVar); // Knowing the data type of $stringVar

$intVar = (int)$stringVar;  //Converting into integer
echo $intVar;

This is called the type casting. But if you permanently change the type then you need to use “settype() function.

$stringVar = "10 Hello World"; //Integer variable
settype($stringVar,'integer'); // permanently change the type
echo gettype($stringVar); // Knowing the data type of $stringVar

This is the simple way to change the type. Remember this is also applicable for all data types (boolean,float, object, array, etc) of php.


By Sohel Rana

PHP Programmer, Software Engineer & Technology lover

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