我有两个数组。
$paternalSiblings = fname => John lname => Doe gender => M birth_year => 1988
fname => Sophie lname => Ellison gender => F birth_year => 1990
$maternalSiblings = fname => John lname => Smith gender => M birth_year => 1997
fname => John lname => Doe gender => M birth_year => 1988
数组的输出:
Array ( [0] => Array ( [fname] => John [lname] => Doe [birth_year] => 1988[gender] => Male [fname] => Sophie [lname] => Ellison [birth_year] => 1990 [death_date] => [gender] => Female ) )
Array ( [0] => Array ( [fname] => John [lname] => Doe [birth_year] => 1988[gender] => Male [fname] => John [lname] => Smith [birth_year] => 1997 [death_date] => [gender] => Male ) )
$fullSiblings = $this->arrayIntersect( $paternalSiblings , $maternalSiblings );
<?php
function arrayIntersect( $primary_array, $secondary_array ) {
if ( !is_array( $primary_array ) || !is_array( $secondary_array ) ) {
return false;
}
if ( !empty( $primary_array ) ) {
foreach( $primary_array as $key => $value ) {
if ( !isset( $secondary_array[$key] ) ) {
unset( $primary_array[$key] );
} else {
if ( serialize( $secondary_array[$key] ) != serialize( $value ) ) {
unset( $primary_array[$key] );
}
}
}
return $primary_array;
} else {
return array();
}
}
?>
这个功能不起作用。我怎样才能使数组相交和不同?我注意到内置函数 array_intersect_assoc() 和 array_diff_assoc() 不适用于多维数组。实现目标的最佳方法是什么?
您至少需要一个固定值来识别每一行,并检查其他值的差异。
$first = array(
"uniqueId1" => array("name" => "Ignacio", "email" => "[email protected]"),
"uniqueId2" => array("name" => "John", "email" => "[email protected]")
);
$second = array(
"uniqueId1" => array("name" => "Ignacio", "email" => "[email protected]"),
"uniqueId2" => array("name" => "Luis", "email" => "[email protected]")
);
您可以比较并获得差异:
foreach($first as $keyRow => $firstRow) {
if(isset($second[$keyRow])) { //The first row exists in second array, so, I will check it
foreach($firstRow as $key => $value) {
if($second[$keyRow][$key] != $value) {
echo "For row: ".$keyRow.", ".$second[$keyRow][$key]." is not equal to: ".$value."<br />";
}
}
}
}
输出:
For row: uniqueId1, [email protected] is't equal to: [email protected]
For row: uniqueId2, Luis is't equal to: John
查找
$paternalSiblings
中与$maternalSiblings
中完全不同的行:
var_export(
array_udiff($paternalSiblings, $maternalSiblings, fn($a, $b) => $a <=> $b)
);
查找
$maternalSiblings
中与$paternalSiblings
中完全不同的行:
var_export(
array_udiff($maternalSiblings, $paternalSiblings, fn($a, $b) => $a <=> $b)
);
查找
$paternalSiblings
中与 $maternalSiblings
中的行完全相同的行:
var_export(
array_uintersect($paternalSiblings, $maternalSiblings, fn($a, $b) => $a <=> $b)
);
查找
$maternalSiblings
中与 $paternalSiblings
中的行完全相同的行:
var_export(
array_uintersect($maternalSiblings, $paternalSiblings, fn($a, $b) => $a <=> $b)
);
通过比较具有相同第一级位置的行,找到
$paternalSiblings
中与$maternalSiblings
中元素不同的关联元素:
var_export(
array_map('array_diff_assoc', $paternalSiblings, $maternalSiblings)
);
通过比较具有相同第一级位置的行,找到
$maternalSiblings
中与$paternalSiblings
中元素不同的关联元素:
var_export(
array_map('array_diff_assoc', $maternalSiblings, $paternalSiblings)
);
通过比较具有相同第一级位置的行,找到
$paternalSiblings
中与 $maternalSiblings
中的元素相同的关联元素:
var_export(
array_map('array_intersect_assoc', $paternalSiblings, $maternalSiblings)
);
通过比较具有相同第一级位置的行,找到
$maternalSiblings
中与 $paternalSiblings
中的元素相同的关联元素:
var_export(
array_map('array_intersect_assoc', $maternalSiblings, $paternalSiblings)
);