htmlspecialchars() why does not work on some chars [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 11 years ago.

hi i was wondering but may开发者_Go百科be i missed up somenthing about htmlspecialchars(), why does this function does not a replacement of all this html special character html special chars list

cause for example the char % is not replaced as i can see

the php manual says about:

 '&' (ampersand) becomes '&'
    '"' (double quote) becomes '"' when ENT_NOQUOTES is not set.
    "'" (single quote) becomes ''' only when ENT_QUOTES is set.
    '<' (less than) becomes '&lt;'
    '>' (greater than) becomes '&gt;'

so about other chars ? no function to replace them all?

---

The manual tells you everything you need to know:

Certain characters have special significance in HTML, and should be represented by HTML entities if they are to preserve their meanings. This function returns a string with some of these conversions made; the translations made are those most useful for everyday web programming. If you require all HTML character entities to be translated, use htmlentities() instead.

This function is useful in preventing user-supplied text from containing HTML markup, such as in a message board or guest book application.

The translations performed are:

• '&' (ampersand) becomes '&'
• '"' (double quote) becomes '"' when ENT_NOQUOTES is not set.
• "'" (single quote) becomes ''' only when ENT_QUOTES is set.
• '<' (less than) becomes '<'
• '>' (greater than) becomes '>'