How to insert an item at the beginning of an array in PHP

Question

I know how to insert it to the end by    arr      item    But how to insert it to the beginning

User · Answer

Use function array unshift

User · Answer

Or you can use temporary array and then delete the real one if you want to change it while in cycle    array   array 0   gt   a   1   gt   b   2   gt   c     temp array    array 1    unset  array 1    array unshift  array    temp array     the output will be   array 0   gt   b   1   gt   a   2   gt   c     and when are doing it while in cycle  you should clean  temp array after appending item to array

User · Answer

In case of an associative array or numbered array where you do not want to change the array keys    firstItem   array  foo    gt   bar      arr    firstItem    arr    array merge does not work as it always reindexes the array

User · Answer

With custom index    arr array  a   gt  one    b   gt  two         arr array  c   gt  three    d   gt  four    arr       print r  arr       -------------------     output      ----------------     Array            c    three        d    four        a    two        b    one

User · Answer

Use array unshift   to insert the first element in an array   User array shift   to removes the first element of an array

User · Answer

This will help  http   www w3schools com php func array unshift asp  array unshift

User · Answer

For an associative array you can just use merge    arr   array  item2    item3    item4     arr   array merge array  item1     arr

User · Answer

Insert an item in the beginning of an associative array with string custom key  lt  php   array     keyOne   gt  valueOne    keyTwo   gt  valueTwo      array   array reverse  array     array  newKey      newValue     array   array reverse  array    RESULT      newKey    gt   newValue      keyOne    gt   valueOne      keyTwo    gt   valueTwo

User · Answer

Use array unshift  array   item     arr   array  item2    item3    item4    array unshift  arr    item1    print r  arr     will give you  Array     0    gt  item1   1    gt  item2   2    gt  item3   3    gt  item4

[php] How to insert an item at the beginning of an array in PHP?

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