IntlChar::isIDPart

(PHP 7, PHP 8)

IntlChar::isIDPartCheck if code point is permissible in an identifier

Descrição

public static IntlChar::isIDPart(int|string $codepoint): ?bool

Determines 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().

Parâmetros

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}")

Valor Retornado

Returns true if codepoint is the code point may occur in an identifier, false if not. Returns null on failure.

Exemplos

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)

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