Delete Array has duplicate values
There is a value $a =array (a,b,c) in the original array A;
Compares the value $b =array (b) in array B;
The two phases are compared to get $c= array (a,c);
Excuse me, how does this work?
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Cycle judgment or removal
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With Array_diff ($array _a, $array _b)
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Array_diff, Array subtraction
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$a = array (a,b,c);
$b = Array (b);
Print_r (Array_diff ($a, $b));
Array
(
[0] = a
[2] = C
)
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Reference:
with Array_diff ($array _a, $array _b)
`
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Http://baike.baidu.com/view/4067743.htm
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In fact, you mean to find out the middle difference set of 2 arrays, Array_diff () This system function can
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The Array_diff () manual has
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Reference:
with Array_diff ($array _a, $array _b)
$c = Array_diff ($a, $b);
echo "C = {";
foreach ($c as $key = $value)
{
echo $value. ",";
}
echo "}
\ n ";
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Reference:
with Array_diff ($array _a, $array _b)
Read more about the function of the handbook