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✏️ Editing: DeprecatedFunctionsSniff.php

<?php
/**
 * Discourages the use of deprecated PHP functions.
 *
 * @author    Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @author    Greg Sherwood <gsherwood@squiz.net>
 * @copyright 2006-2015 Squiz Pty Ltd (ABN 77 084 670 600)
 * @license   https://github.com/PHPCSStandards/PHP_CodeSniffer/blob/HEAD/licence.txt BSD Licence
 */

namespace PHP_CodeSniffer\Standards\Generic\Sniffs\PHP;

use ReflectionFunction;

class DeprecatedFunctionsSniff extends ForbiddenFunctionsSniff
{

/**
     * A list of forbidden functions with their alternatives.
     *
     * The value is NULL if no alternative exists. IE, the
     * function should just not be used.
     *
     * @var array<string, string|null>
     */
    public $forbiddenFunctions = [];

/**
     * Constructor.
     *
     * Uses the Reflection API to get a list of deprecated functions.
     */
    public function __construct()
    {
        $functions = get_defined_functions();

foreach ($functions['internal'] as $functionName) {
            $function = new ReflectionFunction($functionName);

if ($function->isDeprecated() === true) {
                $this->forbiddenFunctions[$functionName] = null;
            }
        }

}//end __construct()

/**
     * Generates the error or warning for this sniff.
     *
     * @param \PHP_CodeSniffer\Files\File $phpcsFile The file being scanned.
     * @param int                         $stackPtr  The position of the forbidden function
     *                                               in the token array.
     * @param string                      $function  The name of the forbidden function.
     * @param string|null                 $pattern   The pattern used for the match.
     *
     * @return void
     */
    protected function addError($phpcsFile, $stackPtr, $function, $pattern=null)
    {
        $data  = [$function];
        $error = 'Function %s() has been deprecated';
        $type  = 'Deprecated';

if ($this->error === true) {
            $phpcsFile->addError($error, $stackPtr, $type, $data);
        } else {
            $phpcsFile->addWarning($error, $stackPtr, $type, $data);
        }

}//end addError()

}//end class

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