IntlChar::isIDPart
Check if code point is permissible in an identifier
Description
public static bool IntlChar::isIDPart
( mixed $codepoint
)
TRUE for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits),
"Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and u_isIDIgnorable(c).
Note:
This is almost the same as Unicode's ID_Continue (IntlChar::PROPERTY_ID_CONTINUE) except that
Unicode recommends to ignore Cf which is less than IntlChar::isIDIgnorable.
Parameters
-
codepoint
-
The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")
Return Values
Returns TRUE if
codepoint is the code point may occur in an identifier, FALSE if not.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isIDPart("A"));
var_dump(IntlChar::isIDPart("$"));
var_dump(IntlChar::isIDPart("\n"));
var_dump(IntlChar::isIDPart("\u{2603}"));
?>
The above example will output:
bool(true)
bool(false)
bool(false)
bool(false)
See Also
- IntlChar::isIDIgnorable
- IntlChar::isIDStart
IntlChar::PROPERTY_ID_CONTINUE