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Checks if a value exists in an array of PHP Manual
if a value exists in an array extract key Array Functions PHP Manual in_array (PHP 4, PHP 5)in_array — Checks if a value exists in an array
How to read a function definition (prototype) of PHP Manual
in_array(). Its prototype is as follows: bool in_array ( mixed $needle, array
Array Functions of PHP Manual
— Import variables into the current symbol table from an arrayin_array — Checks if a value exists in an arraykey
Function Index of PHP Manual
imap_utf7_encode() imap_utf8() implode() import_request_variables() in_array() inet_ntop() inet_pton()
Checks if the given key or index exists in the array of PHP Manual
in_array() - Checks if a value exists in an array property_exists() - Checks
Arrays of PHP Manual
— Import variables into the current symbol table from an arrayin_array — Checks if a value exists in an arraykey — Fetch a key from an
- Checks if the given key or index exists in the array in_array() - Checks if a value exists in an array
Get aliases of a known encoding type of PHP Manual
       = 'ASCII';$known_encodings = mb_list_encodings();if (in_array
std::is_function(3) std::is_function.3
std::is_function
Examples of PHP Manual
"\t" . $linenum . " \n";    if (in_array($errno, $user_errors)) {        $err .= "\t<vartrace>"Â