(PHP 7, PHP 8)
IntlChar::isIDPart — Check if code point is permissible in an identifier
$codepoint
): ?boolDetermines if the specified character is permissible in an identifier.
true
for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits),
"Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and u_isIDIgnorable(c).
Nota:
This is almost the same as Unicode's ID_Continue (
IntlChar::PROPERTY_ID_CONTINUE
) except that Unicode recommends to ignore Cf which is less than IntlChar::isIDIgnorable().
codepoint
O valor int do ponto de código (por exemplo, 0x2603
para U+2603 SNOWMAN) ou o caractere codificado como uma string UTF-8 (por exemplo, "\u{2603}"
)
Returns true
if
codepoint
is the code point may occur in an identifier, false
if not. Returns null
on failure.
Exemplo #1 Testando diferentes pontos de código
<?php
var_dump(IntlChar::isIDPart("A"));
var_dump(IntlChar::isIDPart("$"));
var_dump(IntlChar::isIDPart("\n"));
var_dump(IntlChar::isIDPart("\u{2603}"));
?>
O exemplo acima produzirá:
bool(true) bool(false) bool(false) bool(false)
IntlChar::PROPERTY_ID_CONTINUE