IntlChar::isIDIgnorable
(PHP 7)
IntlChar::isIDIgnorable — Check if code point is an ignorable character
Description
public static bool IntlChar::isIDIgnorable ( mixed $codepoint )Determines if the specified character should be regarded as an ignorable character in an identifier.
TRUE for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).
Note: Note that Unicode just recommends to ignore Cf (format controls).
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 ignorable in identifiers, FALSE if not.
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::isIDIgnorable("A"));
var_dump(IntlChar::isIDIgnorable("?"));
var_dump(IntlChar::isIDIgnorable("\u{007F}"));
?>The above example will output:
bool(false)
bool(false)
bool(true)See Also
- IntlChar::isIDStart() - Check if code point is permissible as the first character in an identifier
- IntlChar::isIDPart() - Check if code point is permissible in an identifier
IntlChar::PROPERTY_DEFAULT_IGNORABLE_CODE_POINT
← IntlChar::isgraph
IntlChar::isIDPart →
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