php - 如何反转 htmlentities()？

Question

对于像áéí这样的特殊字符，我可以调用htmlentities():

$mycaption = htmlentities($mycaption, ENT_QUOTES);

获取对应的html实体:

áéí

我怎样才能把它转回 áéí ？

Answer 1

如果你使用htmlentities()进行编码，你可以使用html_entity_decode()来反转这个过程:

html_entity_decode()

Convert all HTML entities to their applicable characters.

html_entity_decode() is the opposite of htmlentities() in that it converts all HTML entities in the string to their applicable characters.

例如

$myCaption = 'áéí';

//encode
$myCaptionEncoded = htmlentities($myCaption, ENT_QUOTES);

//reverse (decode)
$myCaptionDecoded = html_entity_decode($myCaptionEncoded);