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PHP | IntlChar isgraph() Function

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The IntlChar::isgraph() function is an inbuilt function in PHP which is used to check the code point is a graphic character or not. It returns True for all characters except those with general categories Cc(control codes), Cf(format controls), Cs(surrogates), Cn(unassigned), and Z(separators). Syntax:
bool IntlChar::isgraph ( $codepoint )
Parameters: This function accepts a single parameter $codepoint which is mandatory. The $codepoint value is an integer values or character, which is encoded as a UTF-8 string. Return Value: This function returns True if $codepoint is a graphic character, False otherwise. Below programs illustrate the IntlChar::isgraph() function in PHP: Program 1:
<?php
  
// PHP code to illustrate the 
// IntlChar::isgraph() function.
  
// Alphabet cases 
var_dump(IntlChar::isgraph("c"));
  
// Single digit
var_dump(IntlChar::isgraph("4"));
  
// UTF encoded string
var_dump(IntlChar::isgraph("\u{2403}"));
  
// new line character
var_dump(IntlChar::isgraph("\n"));
  
// vertical tab character
var_dump(IntlChar::isgraph("\t"));
?>

                    
Output:
bool(true)
bool(true)
bool(true)
bool(false)
bool(false)
Program 2:
<?php
// PHP code to illustrate IntlChar isgraph()
     
// Declare an array $arr
$arr = array("Z", "291", "^", "  ", "*", "Sudo Placement");
    
// Loop run for every array element
foreach ($arr as $val){
        
    // Check each element as code point data
    var_dump(IntlChar::isgraph($val));
}
?>

                    
Output:
bool(true)
NULL
bool(true)
NULL
bool(true)
NULL
Related Articles: Reference: http://php.net/manual/en/intlchar.isgraph.php

Last Updated : 03 Nov, 2020
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