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array_intersect
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Updated
Sat, 12 Aug 2000
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array_merge
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(PHP4 ) array_keys -- Return all the keys of an array Descriptionarray array_keys (array input [, mixed
search_value])
Array_keys() returns the keys, numeric and
string, from the input array.
If the optional search_value is specified,
then only the keys for that value are returned. Otherwise, all
the keys from the input are returned.
Példa 1. Array_keys() example
$array = array (0 => 100, "color" => "red");
array_keys ($array); // returns array (0, "color")
$array = array (1, 100, 2, 100);
array_keys ($array, 100); // returns array (0, 2)
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See also array_values().
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array_intersect
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Updated
Sat, 12 Aug 2000
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array_merge
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Manual: array_keys
