Description
Array Array_flip (array trans)
Array_flip () returns a reversed array, such as the key name in trans becomes a value, and the value in trans is the key name.
Note that the value in trans needs to be able to be a valid key name, such as an integer or string. If the value is of the wrong type, a warning will be issued and the problematic key/value pair will not be reversed.
If the same value occurs more than once, the last key will be its value, and all the others are lost.
Array_flip () If the failure returns FALSE.
Instance:
Copy CodeThe code is as follows:
$hills =array ("First" = "Data1″", "second" = "Data2″", "third" and "Data1″");
$hills =array_flip ($hills); Restore Key Name
$hills 1=array_flip (Array_flip ($hills));//Delete duplicates
Display $hills 1
The result is:
Data2 data1 of two data.
http://www.bkjia.com/PHPjc/321898.html www.bkjia.com true http://www.bkjia.com/PHPjc/321898.html techarticle Description Array Array_flip (array trans) Array_flip () returns a reversed array, such as the key name in trans becomes a value, and the value in trans is the key name. Note the values in trans ...
