PHP | IntlChar getNumericValue() Function

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The IntlChar::getNumericValue() function is an inbuilt function in PHP which is used to get the numeric value for a Unicode code point as defined in the Unicode Character Database.

Syntax:

float IntlChar::getNumericValue( $codepoint )

Parameters: This function accepts a single parameter $codepoint which is mandatory. The input parameter is a character, which is encoded as a UTF-8 string.

Return Value: This function returns the numeric value of codepoint on success, or IntlChar::NO_NUMERIC_VALUE if none is defined.

Below programs illustrate the IntlChar::getNumericValue() function in PHP:

Example 1:

<?php  
// PHP program to illustrate the use of 
// IntlChar::getNumericValue() Function 
      
// Input int codepoint value  
var_dump(IntlChar::getNumericValue("2"));  
      
// Input int codepoint value  
var_dump(IntlChar::getNumericValue("4"));  
      
// Input char codepoint value  
var_dump(IntlChar::getNumericValue("G"));  
      
// Input string codepoint value  
var_dump(IntlChar::getNumericValue("Geeks"));  
  
// Input Symbolic codepoint value  
var_dump(IntlChar::getNumericValue("$"));  
  
// Input Symbolic codepoint value  
var_dump(IntlChar::getNumericValue("\u{216C}"));  
  
// Input Symbolic codepoint value  
var_dump(IntlChar::getNumericValue("\u{216F}"));  
  
?>  

Output:

float(2)
float(4)
float(-123456789)
NULL
float(-123456789)
float(50)
float(1000)

Example 2:

<?php  
// PHP program to illustrate the use of  
// IntlChar::getNumericValue() Function  
  
// Declare an array with  
// different codepoint value  
$arr = array("4",  
            "1", 
            "Geeks", 
            "\u{216C}",  
            "\u{216F}",  
            65,  
        );  
      
// For loop condition to check  
// each character through function  
foreach ($arr as $val) {  
          
    // Check each element as code point data  
    var_dump(IntlChar::getNumericValue($val));  
}  
?>  

Output:

float(4)
float(1)
NULL
float(50)
float(1000)
float(-123456789)

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

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