PHP Conference Kansai 2025

    ReflectionFunctionAbstract::isDeprecated

    (PHP 5 >= 5.2.0, PHP 7, PHP 8)

    ReflectionFunctionAbstract::isDeprecated — Checks if deprecated

    Description

    public ReflectionFunctionAbstract::isDeprecated(): bool

    Checks whether the function is deprecated.

    Parameters

    This function has no parameters.

    Return Values

    true if it's deprecated, otherwise false

    Examples

    Example #1 ReflectionFunctionAbstract::isDeprecated() example

    <?php
    $rf     = new ReflectionFunction('ereg');
    var_dump($rf->isDeprecated());
    ?>

    The above example will output:

    bool(true)

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes

    There are no user contributed notes for this page.
    To Top

    Follow Lee on X/Twitter - Father, Husband, Serial builder creating AI, crypto, games & web tools. We are friends :) AI Will Come To Life!

    Check out: eBank.nz (Art Generator) | Netwrck.com (AI Tools) | Text-Generator.io (AI API) | BitBank.nz (Crypto AI) | ReadingTime (Kids Reading) | RewordGame | BigMultiplayerChess | WebFiddle | How.nz | Helix AI Assistant