This function in PHP, in_array(), searches for an existing value in an array. This is a built-in function in PHP. It returns True if the value is found in the array, otherwise it returns False. In the parameters
typeOptional. If this parameter is set to TRUE, the in_array() function searches for the search-string and specific type in the array. Technical Details Return Value:Returns TRUE if the value is found in the array, or FALSE otherwise ...
$cars=array("Volvo","BMW","Toyota"); echo"I like ". $cars[0] .", ". $cars[1] ." and ". $cars[2] ."."; ?> Try it Yourself » Definition and Usage The array() function is used to create an array. In PHP, there are three types of arrays: ...
simple_array.php <?php $fruits = array("apple", "banana", "orange"); print_r($fruits); This creates an indexed array with three elements. The print_r function displays the array structure with automatically assigned keys. Associative Array...
The array() function is used to create an array.In PHP, there are three types of arrays:Indexed arrays - Arrays with numeric index Associative arrays - Arrays with named keys Multidimensional arrays - Arrays containing one or more arrays
说明:不特殊说明都支持php4,5,7 参考:https://www.php.net/manual/zh/ref.array.php is_array ( mixed $var ) : bool 判断变量是否数组。 code: result: Array ( [0] => ) explode
in_array() 检查数组中是否存在指定的值。 array_key_exists() 检查指定的键名是否存在于数组中。 合并(3个) array_combine() 通过合并两个数组来创建一个新数组。 array_merge() 把一个或多个数组合并为一个数组。 array_merge_recursive() 递归地合并一个或多个数组。
PHP 5 Array 函数 函数描述 array()创建数组。 array_change_key_case()返回其键均为大写或小写的数组。 array_chunk()把一个数组分割为新的数组块。 array_column()返回输入数组中某个单一列的值。 array_combine()通过合并两个数组(一个为键名数组,一个为键值数组)来创建一个新数组。
PHP in_array() function: The in_array() function is used to check whether a value exists in an array or not.
functionrate_picture($image_id,$rate){global $conf,$user;if(!isset($rate)or!$conf['rate']or!in_array($rate,$conf['rate_items'])){returnfalse;} 判断$rate不为或者$conf[‘rate’]值存在,或in_array($rate, $conf['rate_items'])),则$rate值不在$conf['rate_items'])中则返回false。