PHP | ctype_print() Function
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 geeks article
Output : Geeks for geeks 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
$string = 'GFG A Computer Science Portal' ;
if (ctype_print( $string )) {
echo " $string : Yes visible\n";
} else {
echo " $string : No visible\n";
}
?>
|
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
$strings = array (
"GeeksforGeeks",
"GFG2018",
"\nComputerScience",
"G 4 G",
"@#$$.&*()_+;?~",
"78 96 . 90"
);
foreach ( $strings as $str ) {
if (ctype_print( $str )) {
echo " $str : (Yes visible)\n";
} else {
echo " $str : (No visible)\n";
}
}
?>
|
Output:
GeeksforGeeks: (Yes visible)
GFG2018: (Yes visible)
ComputerScience: (No visible)
G 4 G: (Yes visible)
@#$$.&*()_+;?~: (Yes visible)
78 96 . 90: (Yes visible)
References : http://php.net/manual/en/function.ctype-print.php
Last Updated :
06 Feb, 2023
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