UtfNormalUtil.php

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<?php
use UtfNormal\Utils;
 
function codepointToUtf8( $codepoint ) {
    wfDeprecated( __FUNCTION__, '1.25' );
    return Utils::codepointToUtf8( $codepoint );
}
 
function hexSequenceToUtf8( $sequence ) {
    wfDeprecated( __FUNCTION__, '1.25' );
    return Utils::hexSequenceToUtf8( $sequence );
}
 
function utf8ToHexSequence( $str ) {
    wfDeprecated( __FUNCTION__, '1.25' );
    $buf = '';
    foreach ( preg_split( '//u', $str, -1, PREG_SPLIT_NO_EMPTY ) as $cp ) {
        $buf .= sprintf( '%04x ', UtfNormal\Utils::utf8ToCodepoint( $cp ) );
    }
 
    return rtrim( $buf );
}
 
function utf8ToCodepoint( $char ) {
    wfDeprecated( __FUNCTION__, '1.25' );
    return Utils::utf8ToCodepoint( $char );
}
 
function escapeSingleString( $string ) {
    wfDeprecated( __FUNCTION__, '1.25' );
    return Utils::escapeSingleString( $string );
}