The strval() function is a built-in function in PHP that converts a value to a string. It can be used to convert any data type to a string data type.


The syntax of the strval() function is as follows:

string strval(mixed $value)

The function takes a single parameter, $value, which is the value to be converted to a string. The function returns a string that represents the value.

Example Usage

Here is an example of how to use the strval() function in PHP:

$var1 = 10;
$var2 = 3.14;
$var3 = true;
$string1 = strval($var1);
$string2 = strval($var2);
$string3 = strval($var3);
echo $string1 . "\n";  // output: "10"
echo $string2 . "\n";  // output: "3.14"
echo $string3 . "\n";  // output: "1"

In this example, we define three variables: $var1 is an integer, $var2 is a float, and $var3 is a boolean. We use the strval() function to convert each variable to a string. The output shows the resulting strings of each variable after the conversion.


The strval() function is a useful tool for converting a value to a string data type in PHP. It can be used to ensure that a value is represented as a string before performing operations on it, or to handle string and non-string data in a particular way. By using this function, developers can ensure that their code is working with the expected data types and avoid errors that may occur when working with mixed data types.

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