PHP | ctype_print() Function - Tutorialspoint.dev

The ctype_print() Function in PHP used to check each and every character of a string are visible or not. If all characters of string are visible then returns TRUE , else if there are any control character then return FALSE.

Control Character: A character that does not represent a printable character but serves to initiate a particular action. for example ‘ ’ is a control character which is not printable but perform action “Next Line”

Syntax:

ctype_print(string text)

Parameter Used:

$text : The tested string. Its a mandatory parameter.

Return Values:
This function return TRUE if all characters of string are printable(not containing any control character). And return FALSE if string contains any control character.

Examples:

Input  : Geeks for geeks article
Output : Geeks for geeks article -->Yes visible

Explanation : The string contains three blank space 
             and the function returns TRUE. 

Input  : 	gfg

Output :     gfg
--> No visible

Explanation : '	' and '
' are control character .
            Then the function returns False.

Program: 1

<?php 
// PHP program to illustrate  
// ctype_print() function  
  
$string = 'GFG A Computer Science Portal'; 
  
// Checking above given strings  
// by used of ctype_print() function . 
if (ctype_print($string)) { 
      
    // if true then return Yes 
    echo "$string: Yes visible
"; 
} else { 
      
    // if False then return No 
    echo "$string: Not visible
"; 
} 
?> 

Output:

GFG A Computer Science Portal: Yes visible

Program: 2 Drive a code of ctype_print() function where input will be integer, symbols in array of strings.

<?php 
// PHP program to illustrate 
// ctype_print() function  
  
$strings = array( 
    "GeeksforGeeks", 
    "GFG2018", 
    "
ComputerScience", 
    "G 4 G", 
    "@#$$.&*()_+;?~", 
    "78 96 . 90"
); 
  
// Checking above array of strings  
// by used of ctype_print() function. 
foreach ($strings as $str) { 
      
    if (ctype_print($str)) { 
          
        // if true then return Yes 
        echo "$str:   (Yes visible)
"; 
    } else { 
        // if False then return No 
        echo "$str:   (No visible)
"; 
    } 
} 
  
?> 

Output:

GeeksforGeeks:   (Yes visible)
GFG2018:   (Yes visible)

ComputerScience:   (No visible)
G 4 G:   (Yes visible)
@#$$.&*()_+;?~:   (Yes visible)
78 96 . 90:   (Yes visible)

References : http://php.net/manual/en/function.ctype-print.php

PHP | ctype_print() Function

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