SplString.md

The SplString class

(PHP 7, PHP 8)

Introduction

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

Class synopsis

SplString extends SplType {
    /* Constants */
    public const string __default = '';
    /* Methods */
    public function __construct ([ string $initial_value = '' ])
    final public function &__invoke(): string
}

Predefined Constants

SplString::__default

Examples

Example #1 SplString usage example

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

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

The above example will output:

object(SplString)#1 (1) {
    ["__default"] => string(7) "Testing"
}
Testing

Table of Contents

• SplType::__construct — Creates a new value of some type
• SplString::__invoke — Invoke object like a method

See Also

• SplType
• SplFloat
• SplEnum
• SplBool
• SplString