PHP array_diff_uassoc() Function
 Complete PHP Array Reference
Definition and Usage
The array_diff_uassoc() function compares two or more arrays, checking for
differences, before comparing the keys in a user-defined function,
then returns an array with the keys and values from the first array, if the function allows it.
Syntax
|
array_diff_uassoc(array1,array2,array3...,function)
|
| Parameter |
Description |
| array1 |
Required. The first array is the array that the others will be compared with |
| array2 |
Required. An array to be compared with the first array |
| array3 |
Optional. An array to be compared with the first array |
| function |
Required. The name of the user-made function |
Tips and Notes
Tip: You can compare the first array with one array, or as many as you like.
Note: Both the key and the value is used in the automatic comparison,
then, in the user-defined function, only the keys are being compared.
Example 1
<?php
function myfunction($v1,$v2)
{
if ($v1===$v2)
{
return 0;
}
if ($v1>$v2)
{
return 1;
}
else
{
return -1;
}
}
$a1=array(0=>"Dog",1=>"Cat",2=>"Horse");
$a2=array(3=>"Dog",1=>"Cat",5=>"Horse");
print_r(array_diff_uassoc($a1,$a2,"myfunction"));
?>
|
The output of the code above will be:
|
Array ( [0] => Dog [2] => Horse )
|
Example 2
How to assign more than two arrays to the function
<?php
function myfunction($v1,$v2)
{
if ($v1===$v2)
{
return 0;
}
if ($v1>$v2)
{
return 1;
}
else
{
return -1;
}
}
$a1=array(0=>"Dog",1=>"Cat",2=>"Horse");
$a2=array(3=>"Dog",1=>"Cat",5=>"Horse");
$a3=array(6=>"Bird",0=>"Dog",5=>"Horse");
print_r(array_diff_uassoc($a1,$a2,$a3,"myfunction"));
?>
|
The output of the code above will be:
Complete PHP Array Reference
Stylus Studio® 2010 XML Enterprise Suite raises the bar for productivity in XML development tools.
Millions of XML developers and data integration specialists turn to Stylus Studio's comprehensive and intuitive
XML toolset to tackle today's advanced XML data transformation and aggregation challenges.
|
- XML Pipeline Editor, Debugger and Code Generator
- DataDirect XML Converters
- XQuery Mapper, Editor, Debugger, and Profiler
- XSLT Mapper, Editor, Debugger, Designer, and Profiler
- Java and C# for .Net Code Generation
- XML Schema Designer With Documentation Generator
- XML Editor With Full XPath Integration
Download a free trial now
|
|
