Core_Arr
    └ ArrayIterator PHP

API - Core_Arr

• Arr::$delimiter
• Arr::is_empty
• Arr::as_array - 获取数组
• Arr::is_assoc - 判断一个数组是否递增key的数组
• Arr::is_array - 判断是否数组或对象型数组
• Arr::path - Gets a value from an array using a dot separated path.
• Arr::set_path - Set a value on an array by path.
• Arr::range - Fill an array with a range of numbers.
• Arr::get - Retrieve a single key from an array. If the key does not exist in the
• Arr::extract - Retrieves multiple keys from an array. If the key does not exist in the
• Arr::pluck - Retrieves muliple single-key values from a list of arrays.
• Arr::unshift - Adds a value to the beginning of an associative array.
• Arr::map - Recursive version of [array_map](http://php.net/array_map), applies the
• Arr::merge - Merges one or more arrays recursively and preserves all keys.
• Arr::overwrite - Overwrites an array with values from input arrays.
• Arr::callback - Creates a callable function and parameter list from a string representation.
• Arr::flatten - Convert a multi-dimensional array into a single-dimensional array.

继承自父类的方法和变量

• PHPArrayIterator::__construct
• PHPArrayIterator::offsetExists
• PHPArrayIterator::offsetGet
• PHPArrayIterator::offsetSet
• PHPArrayIterator::offsetUnset
• PHPArrayIterator::append
• PHPArrayIterator::getArrayCopy
• PHPArrayIterator::count
• PHPArrayIterator::getFlags
• PHPArrayIterator::setFlags
• PHPArrayIterator::asort
• PHPArrayIterator::ksort
• PHPArrayIterator::uasort
• PHPArrayIterator::uksort
• PHPArrayIterator::natsort
• PHPArrayIterator::natcasesort
• PHPArrayIterator::unserialize
• PHPArrayIterator::serialize
• PHPArrayIterator::rewind
• PHPArrayIterator::current
• PHPArrayIterator::key
• PHPArrayIterator::next
• PHPArrayIterator::valid
• PHPArrayIterator::seek

author

呼吸二氧化碳 jonwang@myqee.com

category

MyQEE

package

System

subpackage

Core

copyright

Copyright © 2008-2013 myqee.com

license

http://www.myqee.com/license.html

$this->is_empty( )

// Returns TRUE
Arr::is_assoc(array('username' => 'john.doe'));

// Returns FALSE
Arr::is_assoc('foo', 'bar');

// Returns TRUE
Arr::is_array(array());
Arr::is_array(new ArrayObject);

// Returns FALSE
Arr::is_array(FALSE);
Arr::is_array('not an array!');
Arr::is_array(Database::instance());

// Get the value of $array['foo']['bar']
$value = Arr::path($array, 'foo.bar');

// Get the values of "color" in theme
$colors = Arr::path($array, 'theme.*.color');

// Using an array of keys
$colors = Arr::path($array, array('theme', '*', 'color'));

// Fill an array with values 5, 10, 15, 20
$values = Arr::range(5, 20);

// Get the value "username" from $_POST, if it exists
$username = Arr::get($_POST, 'username');

// Get the value "sorting" from $_GET, if it exists
$sorting = Arr::get($_GET, 'sorting');

// Get the values "username", "password" from $_POST
$auth = Arr::extract($_POST, array('username', 'password'));

// Get all of the "id" values from a result
$ids = Arr::pluck($result, 'id');

// Add an empty value to the start of a select list
Arr::unshift($array, 'none', 'Select a value');

// Apply "strip_tags" to every element in the array
$array = Arr::map('strip_tags', $array);

$john = array('name' => 'john', 'children' => array('fred', 'paul', 'sally', 'jane'));
$mary = array('name' => 'mary', 'children' => array('jane'));

// John and Mary are married, merge them together
$john = Arr::merge($john, $mary);

// The output of $john will now be:
array('name' => 'mary', 'children' => array('fred', 'paul', 'sally', 'jane'))

$a1 = array('name' => 'john', 'mood' => 'happy', 'food' => 'bacon');
$a2 = array('name' => 'jack', 'food' => 'tacos', 'drink' => 'beer');

// Overwrite the values of $a1 with $a2
$array = Arr::overwrite($a1, $a2);

// The output of $array will now be:
array('name' => 'jack', 'mood' => 'happy', 'food' => 'tacos')

// Get the callback function and parameters
list($func, $params) = Arr::callback('Foo::bar(apple,orange)');

// Get the result of the callback
$result = call_user_func_array($func, $params);

$array = array('set' => array('one' => 'something'), 'two' => 'other');

// Flatten the array
$array = Arr::flatten($array);

// The array will now be
array('one' => 'something', 'two' => 'other');