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Home/ Questions/Q 6159755
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Editorial Team
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Editorial Team
Asked: May 23, 20262026-05-23T21:11:07+00:00 2026-05-23T21:11:07+00:00

throw new Exception(__(‘exception’)); What do the __’s do? What are they called? I’ve seen

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throw new Exception(__('exception'));

What do the __’s do? What are they called? I’ve seen this in several implementations and is common throughout the Magento codebase.

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  1. Editorial Team
    Editorial Team
    2026-05-23T21:11:08+00:00Added an answer on May 23, 2026 at 9:11 pm

    __ is a common name for a localization function. __ is a valid function name like any other.

    function __($text) {
        // return localized text
    }
    

    How exactly it works depends on the framework in question.

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