PHP | IntlChar isgraph() Function

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

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