ctype_print
PHP function
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(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
Check for printable character(s)
Description
ctype_print(mixed $text): bool
Checks if all of the characters in the provided string, text, are printable.
Parameters
textThe tested string. Integer Non-string
Return Values
Returns true if every character in text will actually create output (including blanks). Returns false if text contains control characters or characters that do not have any output or control function at all. Empty-string
Examples
A ctype_print() example
php
<?php
$strings = array('string1' => "asdf\n\r\t", 'string2' => 'arf12', 'string3' => 'LKA#@%.54');
foreach ($strings as $name => $testcase) {
if (ctype_print($testcase)) {
echo "The string '$name' consists of all printable characters.\n";
} else {
echo "The string '$name' does not consist of all printable characters.\n";
}
}
?>The above example will output:
output
The string 'string1' does not consist of all printable characters.
The string 'string2' consists of all printable characters.
The string 'string3' consists of all printable characters.