PHP Data type conversions

Source: Internet
Author: User

PHP Data type conversions

PHP's data type conversions are cast, and the PHP data types that are allowed to be converted are:

• (int), (integer): Convert to Reshape
• (float), (double), (real): Convert to floating-point
• (string): Convert to String
• (bool), (Boolean): Convert to Boolean type
• (array): Convert an array
• (object): Convert to Object
There are three ways to convert PHP data types:

before the variable to be converted, add the target type in parentheses  
Use 3 specific types of conversion functions, intval (), Floatval (), Strval ()  ,
using a common type conversion function Settype ( Mixed var,string type)  
  the first way to convert: (int)   (bool)   ( float)   (string)   (array) (object)

 
1.<?php     
3. $num 2= (int) $num 1;    
4.var_dump ($num 1);// Output float (3.14)     
5.var_dump ($num 2);//output int (3)     
6.? >   

&NBSP;
1.<?php     

3. $int =intval ($STR);    //converted value: 123    
4. $float =floatval ($STR); Converted value: 123.9    
5. $str =strval ($float);   //converted string: "123.9" &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;
6.? >   
The third mode of conversion:  settype ();


1.<?php
2. $num 4=12.8;
3. $flg =settype ($num 4, "int");
4.var_dump ($FLG); output bool (TRUE)
5.var_dump ($num 4); Output int (12)
6.?>

PHP Data type conversion (RPM)

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