(PHP 4 >= 4.0.4, PHP 5, PHP 7)
ctype_graph — Verifica se os caracteres são imprimíveis exceto espaço
$text
)
Verifica se todos os caracteres na string fornecida,
text
, são visíveis.
text
A string a ser testada.
Retorna TRUE
se todos caracteres em text
são
imprimíveis e criam uma saída visível (sem white space), FALSE
caso contrário.
Exemplo #1 A ctype_graph() example
<?php
$strings = array('string1' => "asdf\n\r\t", 'string2' => 'arf12', 'string3' => 'LKA#@%.54');
foreach ($strings as $name => $testcase) {
if (ctype_graph($testcase)) {
echo "The string '$name' consists of all (visibly) printable characters.\n";
} else {
echo "The string '$name' does not consist of all (visibly) printable characters.\n";
}
}
?>
O exemplo acima irá imprimir:
The string 'string1' does not consist of all (visibly) printable characters. The string 'string2' consists of all (visibly) printable characters. The string 'string3' consists of all (visibly) printable characters.