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Bug #23581 array_map(NULL, array, array ...) yields an undefined result
Submitted: 2003-05-11 01:26 UTC Modified: 2003-05-11 01:38 UTC
From: moriyoshi@php.net Assigned: moriyoshi (profile)
Status: Closed Package: Arrays related
PHP Version: 4.3.2RC2 OS: any
Private report: No CVE-ID: None
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 [2003-05-11 01:26 UTC] moriyoshi@php.net 
<?php
var_dump(
  array_map(
    NULL,
    array(1,2,3),
    array(4,5,6),
    array(7,8,9)
  )
);
?>

result:

array(3) {
  [0]=>
  array(3) {
    [0]=>
    &UNKNOWN:0
    [1]=>
    &UNKNOWN:0
    [2]=>
    &UNKNOWN:0
  }
  [1]=>
  array(3) {
    [0]=>
    &UNKNOWN:0
    [1]=>
    &UNKNOWN:0
    [2]=>
    &UNKNOWN:0
  }
  [2]=>
  array(3) {
    [0]=>
    &UNKNOWN:0
    [1]=>
    &UNKNOWN:0
    [2]=>
    &UNKNOWN:0
  }
}

while it should be

array(3) {
  [0]=>
  array(3) {
    [0]=>
    int(1)
    [1]=>
    int(4)
    [2]=>
    int(7)
  }
  [1]=>
  array(3) {
    [0]=>
    int(2)
    [1]=>
    int(5)
    [2]=>
    int(8)
  }
  [2]=>
  array(3) {
    [0]=>
    int(3)
    [1]=>
    int(6)
    [2]=>
    int(9)
  }
}

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History

AllCommentsChangesGit/SVN commitsRelated reports
 [2003-05-11 01:38 UTC] moriyoshi@php.net 
This bug has been fixed in CVS.

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every three hours; this change will be in the next snapshot. You can
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In case this was a documentation problem, the fix will show up soon at
http://www.php.net/manual/.

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