PHP | IntlChar::charAge() Function

Last Updated : 04 Feb, 2021

The IntlChar::charAge() function is an inbuilt function in PHP which is used to calculate the age of code point. Where the age is Unicode version when the code point was first designated or assigned a character. This can be useful to avoid emitting code points to receiving processes that do not accept newer characters.

Syntax:

array IntlChar::charAge( $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: In true cases the $codepoint return the Unicode version number of an array.

Below programs illustrate the IntlChar::charAge() function in PHP.

Program 1:

PHP

<?php
// PHP code to illustrate IntlChar::charAge()
// function
  
// Input int codepoint value 
var_dump(IntlChar::charage("\u{2025}"));
echo "<br>";
 
// Input character codepoint value 
var_dump(IntlChar::charage("\u{1F878}"));
echo "<br>";
 
// Input int codepoint value 
var_dump(IntlChar::charage("\u20"));
echo "<br>";
 
// Input character codepoint value 
var_dump(IntlChar::charage("Geeks"));
echo "<br>";
 
?>

Output:

array(4) { [0]=> int(1) [1]=> int(1) [2]=> int(0) [3]=> int(0) } 
array(4) { [0]=> int(7) [1]=> int(0) [2]=> int(0) [3]=> int(0) } 
NULL 
NULL

Program 2:

PHP

<?php
// PHP code to illustrate IntlChar::charAge()
      
// Declare an array $arr
$arr = array("^", "2345", "6", "\n");
  
// Loop run for every array element
foreach ($arr as $val){
      
    // Check each element as code point data
    var_dump(IntlChar::charage($val));
    echo "<br>";
}
?>

Output:

array(4) { [0]=> int(1) [1]=> int(1) [2]=> int(0) [3]=> int(0) } 
NULL 
array(4) { [0]=> int(1) [1]=> int(1) [2]=> int(0) [3]=> int(0) } 
array(4) { [0]=> int(1) [1]=> int(1) [2]=> int(0) [3]=> int(0) }

Related Articles:

Reference: http://php.net/manual/en/intlchar.charage.php

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