Get the first N elements of an array

Question

What is the best way to accomplish this

User · Accepted Answer

Use array slice       This is an example from the PHP manual  array slice   input   array  a    b    c    d    e     output   array slice  input  0  3        returns  a    b   and  c    There is only a small issue  If the array indices are meaningful to you  remember that array slice will reset and reorder the numeric array indices  You need the preserve keys flag set to trueto avoid this   4th parameter  available since 5 0 2    Example    output   array slice  input  2  3  true     Output   array  3   gt  c    4   gt  d    5   gt  e

User · Answer

You can use array slice as    sliced array   array slice  array 0  N

User · Answer

In the current order  I d say array slice    Since it s a built in function it will be faster than looping through the array while keeping track of an incrementing index until N

User · Answer

array slice   is best thing to try  following are the examples     lt  php  input   array  a    b    c    d    e      output   array slice  input  2           returns  c    d   and  e   output   array slice  input  -2  1       returns  d   output   array slice  input  0  3        returns  a    b   and  c      note the differences in the array keys print r array slice  input  2  -1    print r array slice  input  2  -1  true      gt

User · Answer

if you want to get the first N elements and also remove it from the array  you can use array splice    note the  p  in  splice     http   docs php net manual da function array-splice php  use it like so   array without n elements   array splice  old array  0  N

[php] Get the first N elements of an array?

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