[英]PHP compare two arrays and get the matched values not the difference
我正在尝试比较两个数组并仅获取两个数组中存在的值,但不幸的是,我找不到要使用的正确数组函数...
我找到了array_diff()
函数: http : //php.net/manual/en/function.array-diff.php
但这是为了两个数组的差异。
例子:
$array1 = array("**alpha**","omega","**bravo**","**charlie**","**delta**","**foxfrot**");
$array2 = array("**alpha**","gamma","**bravo**","x-ray","**charlie**","**delta**","halo","eagle","**foxfrot**");
预期输出:
$result = array("**alpha**","**bravo**","**charlie**","**delta**","**foxfrot**");
简单,使用array_intersect()
代替:
$result = array_intersect($array1, $array2);
好的.. 我们需要比较动态数量的产品名称...
可能有更好的方法......但这对我有用......
...因为....字符串只是字符数组.... :>}
// Compare Strings ... Return Matching Text and Differences with Product IDs...
// From MySql...
$productID1 = 'abc123';
$productName1 = "EcoPlus Premio Jet 600";
$productID2 = 'xyz789';
$productName2 = "EcoPlus Premio Jet 800";
$ProductNames = array(
$productID1 => $productName1,
$productID2 => $productName2
);
function compareNames($ProductNames){
// Convert NameStrings to Arrays...
foreach($ProductNames as $id => $product_name){
$Package1[$id] = explode(" ",$product_name);
}
// Get Matching Text...
$Matching = call_user_func_array('array_intersect', $Package1 );
$MatchingText = implode(" ",$Matching);
// Get Different Text...
foreach($Package1 as $id => $product_name_chunks){
$Package2 = array($product_name_chunks,$Matching);
$diff = call_user_func_array('array_diff', $Package2 );
$DifferentText[$id] = trim(implode(" ", $diff));
}
$results[$MatchingText] = $DifferentText;
return $results;
}
$Results = compareNames($ProductNames);
print_r($Results);
// Gives us this...
[EcoPlus Premio Jet]
[abc123] => 600
[xyz789] => 800
我认为这个问题的更好答案是
array_diff()
因为它将数组与一个或多个其他数组进行比较,并返回数组中不存在于任何其他数组中的值。
然而
array_intersect() 返回一个数组,其中包含所有参数中存在的数组的所有值。 请注意,密钥被保留。
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