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php5.5 preg_replace 使用e問題，改寫成preg_replace_callback

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翻翻過去那場雪 2019-04-16 16:58:39

publicfunctionentity_decode($str,$charset='UTF-8'){if(stristr($str,'&')===FALSE){return$str;}$str=html_entity_decode($str,ENT_COMPAT,$charset);$str=preg_replace('~&#x(0*[0-9a-f]{2,5})~ei','chr(hexdec("\\1"))',$str);returnpreg_replace('~&#([0-9]{2,4})~e','chr(\\1)',$str);}麻煩使用preg_replace_callback改寫下該方法，謝謝。

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守候你守候我

TA貢獻1802條經(jīng)驗獲得超10個贊

phppublicfunctionentity_decode($str,$charset='UTF-8'){if(stristr($str,'&')===false){return$str;}$str=html_entity_decode($str,ENT_COMPAT,$charset);$str=preg_replace_callback('/&#x(0*[0-9a-f]{2,5})/i',function($matches){returnchr(hexdec($matches[1]));},$str);returnpreg_replace_callback('/&#([0-9]{2,4})/',function($matches){returnchr($matches[1]);},$str);}

反對回復 2019-04-16

慕無忌1623718

TA貢獻1744條經(jīng)驗獲得超4個贊

題主是從CI里復制的代碼吧？上面那個答案中1改成0我是這樣寫的。。publicfunctionentity_decode($str,$charset='UTF-8'){if(stristr($str,'&')===FALSE){return$str;}$str=html_entity_decode($str,ENT_COMPAT,$charset);if(version_compare(PHP_VERSION,'5.5.0','>=')){$str=preg_replace_callback('/&#x(0*[0-9a-f]{2,5})/i',function($matches){returnchr(hexdec($matches[0]));},$str);returnpreg_replace_callback('/&#([0-9]{2,4})/',function($matches){returnchr($matches[0]);},$str);}$str=preg_replace('~&#x(0*[0-9a-f]{2,5})~ei','chr(hexdec("\\1"))',$str);returnpreg_replace('~&#([0-9]{2,4})~e','chr(\\1)',$str);}