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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /*  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * This file is part of the Symfony package.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * (c) Fabien Potencier <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * For the full copyright and license information, please view the LICENSE  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * file that was distributed with this source code.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Symfony\Polyfill\Iconv as p;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if (!function_exists('iconv')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    define('ICONV_IMPL', 'Symfony'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    define('ICONV_VERSION', '1.0'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    define('ICONV_MIME_DECODE_STRICT', 1); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    define('ICONV_MIME_DECODE_CONTINUE_ON_ERROR', 2); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    function iconv($from, $to, $s) { return p\Iconv::iconv($from, $to, $s); } | 
            
            
                                                                        
                            
            
                                    
            
            
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                    function iconv_get_encoding($type = 'all') { return p\Iconv::iconv_get_encoding($type); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    function iconv_set_encoding($type, $charset) { return p\Iconv::iconv_set_encoding($type, $charset); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    function iconv_mime_encode($name, $value, $pref = null) { return p\Iconv::iconv_mime_encode($name, $value, $pref); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    function iconv_mime_decode_headers($encodedHeaders, $mode = 0, $enc = null) { return p\Iconv::iconv_mime_decode_headers($encodedHeaders, $mode, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    if (extension_loaded('mbstring')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_strlen($s, $enc = null) { null === $enc and $enc = p\Iconv::$internalEncoding; return mb_strlen($s, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_strpos($s, $needle, $offset = 0, $enc = null) { null === $enc and $enc = p\Iconv::$internalEncoding; return mb_strpos($s, $needle, $offset, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_strrpos($s, $needle, $enc = null) { null === $enc and $enc = p\Iconv::$internalEncoding; return mb_strrpos($s, $needle, 0, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_substr($s, $start, $length = 2147483647, $enc = null) { null === $enc and $enc = p\Iconv::$internalEncoding; return mb_substr($s, $start, $length, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_mime_decode($encodedHeaders, $mode = 0, $enc = null) { null === $enc and $enc = p\Iconv::$internalEncoding; return mb_decode_mimeheader($encodedHeaders, $mode, $enc); } | 
            
                            
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                    } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (extension_loaded('xml')) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            function iconv_strlen($s, $enc = null) { return p\Iconv::strlen1($s, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            function iconv_strlen($s, $enc = null) { return p\Iconv::strlen2($s, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_strpos($s, $needle, $offset = 0, $enc = null) { return p\Iconv::iconv_strpos($s, $needle, $offset, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_strrpos($s, $needle, $enc = null) { return p\Iconv::iconv_strrpos($s, $needle, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_substr($s, $start, $length = 2147483647, $enc = null) { return p\Iconv::iconv_substr($s, $start, $length, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        function iconv_mime_decode($encodedHeaders, $mode = 0, $enc = null) { return p\Iconv::iconv_mime_decode($encodedHeaders, $mode, $enc); } | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.