(PHP 7)
IntlChar::isJavaIDStart — Check if code point is permissible as the first character in a Java identifier
Determines if the specified character is permissible as the start of a Java identifier.
In addition to IntlChar::isIDStart(), TRUE
for characters with general categories "Sc" (currency symbols) and "Pc" (connecting punctuation).
Returns TRUE
if
codepoint
may start a Java identifier, FALSE
if not.
Beispiel #1 Testen unterschiedlicher Codepoints
<?php
var_dump(IntlChar::isJavaIDStart("A"));
var_dump(IntlChar::isJavaIDStart("$"));
var_dump(IntlChar::isJavaIDStart("\n"));
var_dump(IntlChar::isJavaIDStart("\u{2603}"));
?>
Das oben gezeigte Beispiel erzeugt folgende Ausgabe:
bool(true) bool(true) bool(false) bool(false)