How to use strval() function in PHP?

The strval() function is a built-in function in PHP that is used to convert any scalar value (string, integer or double) to a string. We cannot use strval() on arrays or objects, this function only returns the type name of the value to be converted if it is applied.

Syntax:

strval( $variable )

Parameters: This function accepts a single parameter $variable. This parameter represents the value we want to convert to a string

Return value: This function returns a string. The string is generated by typecasting the value of the variable passed to it as a parameter.

The following program illustrates the strval() function.

Program 1:

<?php
  
$var_name = 32.360;
  
// prints the value of above variable 
// as a string
echo strval ( $var_name );
  
?>

The output is as follows:

32.36

Program 2:

<?php
  
class lsbin
{
     public function __toString()
     {   
         // returns the class name 
         return __CLASS__ ;
     }
}
  
// prints the name of above class as
// a string
echo strval ( new lsbin);
  
?>

The output is as follows:

lsbin

Program 3:

<?php
// Program to illustrate the strval() function
// when an array is passed as parameter
  
// Input array
$arr = array (1, 2, 3, 4, 5);
  
// This will print only the type of value
// being converted i.e. &#39;Array&#39;
echo strval ( $arr );
  
?>

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