So überprüfen Sie, ob eine Zeichenfolge ein Substring in PHP enthält
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}
Samson Munyira
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}
is_string($var)$names = array("Maria", "Jhon", "John", 777, "Michael");
foreach ($names as $check) {
if(is_string($check)) {
echo "This is a string: ". $check. "<br>";
} else {
echo "This is not a string: ".$check. "<br>";
}
}
// using foreach and is_string menthods
// If you want to check an array if it contains number or notif (strpos($haystack,$needle) !== false) {
echo "$haystack contains $needle";
}is_string(mixed $value): bool$haystack = 'This is my haystack that we shall check'
$has_A = strpos($haystack, 'A') !== false;
$has_a = strpos($haystack, 'a') !== false;