The SplString class

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Introduction

The SplString class is used to enforce strong typing of the string type.

Class synopsis

SplString extends SplType {
/* Constants */
const integer __default = 0 ;
/* Inherited methods */
SplType::__construct ([ mixed $initial_value [, bool $strict ]] )
}

Predefined Constants

SplString::__default

Examples

Example #1 SplString usage example

<?php
$string = new SplString("Testing");

try {
    $string = array();
} catch (UnexpectedValueException $uve) {
    echo $uve->getMessage() . PHP_EOL;
}

var_dump($string);
echo $string; // Outputs "Testing"
?>

The above example will output:

Value not a string
object(SplString)#1 (1) {
  ["__default"]=>
  string(7) "Testing"
}
Testing