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I have two arrays:
$array1:
Array
(
[0] => 2032
[1] => 2027
[2] => 2025
[3] => 2023
[4] => 2021
[5] => 2018
[6] => 2014
[7] => 2011
[8] => 2009
[9] => 1947
[10] => 1941
[11] => 1939
[12] => 1937
[13] => 1935
[14] => 1933
[15] => 1928
[16] => 1926
[17] => 1924
[18] => 1922
[19] => 1920
[20] => 1918
[21] => 1916
[22] => 1910
[23] => 1881
[24] => 1680
[25] => 1678
[26] => 1879
[27] => 1877
[28] => 1875
[29] => 1873
[30] => 1871
[31] => 1869
[32] => 1865
[33] => 1863
[34] => 1858
[35] => 1850
[36] => 1844
[37] => 1838
[38] => 1829
[39] => 1827
[40] => 1825
[41] => 1821
[42] => 1819
[43] => 1814
[44] => 1812
[45] => 1810
[46] => 1808
[47] => 1806
[48] => 1804
[49] => 1801
[50] => 1793
[51] => 1791
[52] => 1789
[53] => 1784
[54] => 1774
[55] => 1772
[56] => 1770
[57] => 1768
[58] => 1766
[59] => 1764
[60] => 1762
[61] => 1760
[62] => 1754
[63] => 1748
[64] => 1746
[65] => 1744
[66] => 1740
[67] => 1738
[68] => 1732
[69] => 1722
[70] => 1720
[71] => 1716
[72] => 1714
[73] => 1711
[74] => 1708
[75] => 1703
[76] => 1699
[77] => 1673
[78] => 1671
[79] => 1669
[80] => 1667
[81] => 1665
[82] => 1663
[83] => 1661
[84] => 1659
[85] => 1655
)
$array2:
Array
(
[0] => 1665
[1] => 1671
[2] => 1714
[3] => 1716
[4] => 1722
[5] => 1732
[6] => 1774
[7] => 1801
[8] => 1804
[9] => 1916
[10] => 1918
[11] => 1920
[12] => 1924
[13] => 1933
[14] => 1935
[15] => 1939
)
What I need to do is check each value of array one and see if it is in array two, if the value is in array two then place that value into array three. But array three needs to stay in the order that the values appear in array one.
I can just write some code to loop through array one do an in_array() and if true drop into array three. This would work but the reason for my question is that is there any function already available for this task? If not then whats the most effiecient and speedy way to do this?
948
For removing one array from another array in java we will use the removeAll() method. This will remove all the elements of the array1 from array2 if we call removeAll() function from array2 and array1 as a parameter.
Use the . filter() method on the first array and check if the elements of first array are not present in the second array, Include those elements in the output.
Find the index of the array element you want to remove using indexOf , and then remove that index with splice . The splice() method changes the contents of an array by removing existing elements and/or adding new elements. The second parameter of splice is the number of elements to remove.
Removing Array Elements You can use the pop() method to remove an element from the array.
$array3 = array_intersect($array, $array2)
http://php.net/manual/en/function.array-intersect.php
118
you can use array_intersect().
http://php.net/manual/en/function.array-intersect.php
28
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