＄foo = array( "Robert" => "Bob", "Seppo" => "Sepi" ); ＄bar = each( ＄foo );

＄bar now contains the following key/value pairs:

0 => 'Robert'
1 => 'Bob'
key => 'Robert'
value => 'Bob'

Example 2. Traversing ＄HTTP_POST_VARS with each()

echo "Values submitted via POST method:<br>";
while ( list( ＄key, ＄val ) = each( ＄HTTP_POST_VARS ) ) {
echo "＄key => ＄val<br>";
}

函数end()
描述：
将数组中的指针移到最后一个
end (array array);
end() advances array 's internal pointer to the last element.

函数key()
描述：
从一数组中取出key
mixed key (array array);
key() returns the index element of the current array position.

函数ksort()
描述：
以key来排列一数组
Example 1. ksort() example

＄fruits = array("d"=>"lemon","a"=>"orange","b"=>"banana","c"=>"apple");
ksort(＄fruits);
for(reset(＄fruits);
＄key = key(＄fruits);
next(＄fruits)) { echo "fruits[＄key] = ".＄fruits[＄key]."\n"; }

This example would display: fruits[a] = orange fruits[b] = banana fruits[c] = apple fruits[d] = lemon

函数list()
描述：
用类似数组的方式去指定一整串变量的值
Example 1. list() example

<table> <tr> <th> Employee name</th>
<th>Salary</th> </tr>
<?php ＄result = mysql(＄conn, "SELECT id, name, salary FROM employees");
while (list(＄id, ＄name, ＄salary) = mysql_fetch_row(＄result)) {
print(" <tr>\n"."<td><a href=

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