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Request #72995 wish: add 'else' to a 'foreach' block
Submitted: 2016-09-01 16:44 UTC Modified: 2016-09-01 22:32 UTC
From: php at richardneill dot org Assigned:
Status: Duplicate Package: Arrays related
PHP Version: Irrelevant OS:
Private report: No CVE-ID: None
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 [2016-09-01 16:44 UTC] php at richardneill dot org
It would be useful if foreach supported an 'else' block, to be evaluated if there are no elements in the array. Just syntactic sugar, but it would make the program easier to read.

This is similar in spirit to the enhancement request in: #60684

Test script:
//One or other of these initial conditions:
$list = array ("apple", "banana", "cherry");
$list = array();

//Print the list, handle the case where tje array is empty.
foreach ($list as $fruit){
   echo "You have a $fruit.<br>";
   echo "Sorry, you have no fruit today.<br>";

Expected result:
When the foreach array is empty, control passes into the else block. Otherwise, it doesn't.

This makes the code easier to read, because we don't have to write things like:

foreach ($list as $fruit){
   echo "You have a $fruit.<br>";   
   $atleastone = true;
if (!$atleastone){
   echo "Sorry, you have no fruit today.<br>";


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 [2016-09-01 18:02 UTC]
You could also write:

  if (empty($list)) {
      echo "Sorry, you have no fruit today.<br>";
  } else foreach ($list as $fruit) {
      echo "You have a $fruit.<br>";  
 [2016-09-01 22:32 UTC]
-Status: Open +Status: Duplicate
 [2016-09-01 22:32 UTC]
Duplicate of bug #72148, and it of #46240 and #26411.

The feature was considered and declined.
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