DeprecatedGlobal.php

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<?php
class DeprecatedGlobal extends StubObject {
    // The m's are to stay consistent with parent class.
    protected $mRealValue, $mVersion;

    function __construct( $name, $realValue, $version = false ) {
        parent::__construct( $name );
        $this->mRealValue = $realValue;
        $this->mVersion = $version;
    }

    function _newObject() {
        /* Put the caller offset for wfDeprecated as 6, as
         * that gives the function that uses this object, since:
         * 1 = this function ( _newObject )
         * 2 = StubObject::_unstub
         * 3 = StubObject::_call
         * 4 = StubObject::__call
         * 5 = DeprecatedGlobal::<method of global called>
         * 6 = Actual function using the global.
         * Of course its theoretically possible to have other call
         * sequences for this method, but that seems to be
         * rather unlikely.
         */
        wfDeprecated( '$' . $this->mGlobal, $this->mVersion, false, 6 );
        return $this->mRealValue;
    }
}