zkontrolujte, zda má pole hodnotu php
$myArr = [38, 18, 10, 7, "15"];
echo in_array(10, $myArr); // TRUE
echo in_array(19, $myArr); // TRUE
// Without strict check
echo in_array("18", $myArr); // TRUE
// With strict check
echo in_array("18", $myArr, true); // FALSE
in_array php
<?php
$os = array("Apple", "Banana", "Lemon");
if (in_array("Apple", $os)) {
echo "Yeah. Exist Apple";
}
if (!in_array("Buleberry", $os)) {
echo "Oh, Don't Exist Blueberry!!!";
}
?>
in_array v php
in_array ( mixed $needle , array $haystack [, bool $strict = FALSE ] ) : bool
// Without strict check
echo in_array("18", $myArr); // TRUE
// With strict check
echo in_array("18", $myArr, true); // FALSE
pole php
<?php
$array = array(
"foo" => "bar",
"bar" => "foo",
);
// as of PHP 5.4
$array = [
"foo" => "bar",
"bar" => "foo",
];
?>
in_array
in_array ( mixed $needle , array $haystack [, bool $strict = FALSE ] ) : bool
PHP pole
<?php
$cars = array("Volvo", "BMW", "Toyota");
echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . ".";
?>
co je použití funkce in_array () v php
The in_array() function is an inbuilt function in PHP.
The in_array() function is used to check whether a given value exists in an array or not.
It returns TRUE if the given value is found in the given array, and FALSE otherwise.
<?php
$people = array("Peter", "Joe", "Glenn", "Cleveland");
if (in_array("Glenn", $people))
{
echo "Match found";
}
else
{
echo "Match not found";
}
?>