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 ‘\n’ 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 neveropen article
Output : Geeks for neveropen article -->Yes visible
Explanation : The string contains three blank space
and the function returns TRUE.
Input : \tgfg\n
Output : gfg
--> No visible
Explanation : '\t' and '\n' are control character .
Then the function returns False.
Program: 1
PHP
<?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 "$string: Yes visible\n";} else { // if False then return No echo "$string: No visible\n";}?> |
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// PHP program to illustrate// ctype_print() function $strings = array( "neveropen", "GFG2018", "\nComputerScience", "G 4 G", "@#$$.&*()_+;?~", "78 96 . 90");// Checking above array of strings // by used of ctype_print() function.foreach ($strings as $str) { if (ctype_print($str)) { // if true then return Yes echo "$str: (Yes visible)\n"; } else { // if False then return No echo "$str: (No visible)\n"; }}?> |
neveropen: (Yes visible) GFG2018: (Yes visible) ComputerScience: (No visible) G 4 G: (Yes visible) @#$$.&*()_+;?~: (Yes visible) 78 96 . 90: (Yes visible)
References : http://php.net/manual/en/function.ctype-print.php
