The IntlChar::isIDPart() function is an inbuilt function in PHP which is used to check whether the given input character is permissible in an identifier or not. It is True for characters with general category “L” (Letters), “Nd” (Decimal digits), “Nl” (letters numbers), “Mc” and “Mn”(Combining marks), “Pc” (Connecting Punctuation) and u_isIDIgnorable(c).
Syntax:
bool IntlChar::isIDPart( $codepoint )
Parameters: This function accepts a single parameter $codepoint which is mandatory. The input parameter is a character or integer value, which is encoded as a UTF-8 string.
Return Value: If $codepoint is an identifier character then returns True, otherwise return False.
Below programs illustrate the IntlChar::isIDPart() Function in PHP:
Program 1:
php
<?php // PHP code to illustrate// IntlChar::isIDPart() function // Input character codepoint value var_dump(IntlChar::isIDPart("X"));// Input string codepoint value var_dump(IntlChar::isIDPart("Geeks")); // Input symbolic codepoint value var_dump(IntlChar::isIDPart("^ ")); // Input int codepoint value var_dump(IntlChar::isIDPart("3 ")); // Input int char an identifier// of codepoint valuevar_dump(IntlChar::isIDPart("\u{007F}"));var_dump(IntlChar::isIDPart("\u{012C}"));?> |
Output:
bool(true) NULL NULL NULL bool(true) bool(true)
Program 2:
php
<?php// PHP code to illustrate// IntlChar::isIDPart() function// Declare an array with// different codepoint value $arr = array("D", "\u{007F}", ".", "8", "/", " " ); // For loop condition to check // each character through functionforeach ($arr as $val) { // Check each element as code point data var_dump(IntlChar::isIDPart($val));}?> |
Output:
bool(true) bool(true) bool(false) bool(true) bool(false) bool(false)
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