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This function is identical to htmlspecialchars() in all ways, except with htmlentities(), all characters which have HTML character entity equivalents are translated into these entities.
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The translations performed are:
¡®&' (ampersand) becomes ¡®&'
¡®¡±¡® (double quote) becomes ¡®¡±¡® when ENT_NOQUOTES is not set.
¡±' (single quote) becomes ¡±' only when ENT_QUOTES is set. www.phperz.com
¡®<' (less than) becomes ¡®<'
¡®>' (greater than) becomes ¡®>' php³ÌÐòÔ±Õ¾ ¿ÉÒÔÁ˽⵽htmlspecialcharsֻת»¯ÉÏÃæÕ⼸¸öhtml´úÂ룬¶øhtmlentitiesÈ´»áת»¯ËùÓеÄhtml´úÂ룬Á¬Í¬ÀïÃæµÄËüÎÞ·¨Ê¶±ðµÄÖÐÎÄ×Ö·ûÒ²¸ø×ª»¯ÁË¡£
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$str='<a href="test.html">²âÊÔÒ³Ãæ</a>';
echo htmlentities($str); $str='<a href="test.html">²âÊÔÒ³Ãæ</a>';
echo htmlspecialchars($str); ÓÐÌõ¼þµÄÅóÓÑ£¬¿ÉÒÔ·Ö±ðÔËÐÐÒ»ÏÂÉÏÃæµÄÕâÁ½¶Î´úÂ룬¾Í¿ÉÒÔ¿´³öÁ½ÕߵIJî±ðÁË¡£ ___________________________________________________________________________________ htmlspecialchars°ÑÄ³Ð©ÌØÊâ×Ö·ûת»»³ÉhtmlµÄ±àÂ룬³£Óõ½µÄ³¡ºÏ¿ÉÄܾÍÊÇ´¦Àí¿Í»§ÁôÑÔµÄÁôÑÔ°æÁË¡£ ÕâÐ©ÌØÊâ×Ö·û½öÏÞÓÚÒÔϼ¸¸ö£º   &   ->  &amp;


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