rfc:list_default_value

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Next revisionBoth sides next revision
rfc:list_default_value [2015/11/09 13:33] – reezerfc:list_default_value [2015/11/09 13:53] – reeze
Line 18: Line 18:
  
 <code php> <code php>
 +// basic syntax
 list($a, $b='default') = [1];      // a = 1, b = 'default' list($a, $b='default') = [1];      // a = 1, b = 'default'
 list($a, $b='default') = [1, 2];  // a = 1, b = 2 list($a, $b='default') = [1, 2];  // a = 1, b = 2
 +
 +//  comparation
 +list($a, list($b=1, $c=2) = $arr;
 +// or we need to check it ourself
 +if (!isset($arr[1][0])) {
 +    $arr[1][0] = 1;
 +}
 +if (!isset($arr[1][1])) {
 +    $arr[1][0] = 2;
 +}
 +
 +$list($a, list($b, $c)) = $arr;
  
  
 +// other examples
 function say_hello() function say_hello()
 { {
Line 81: Line 95:
  
 ===== RFC Impact ===== ===== RFC Impact =====
-==== To SAPIs ==== 
-No impact 
- 
-==== To Existing Extensions ==== 
-No impact 
  
 ==== To Opcache ==== ==== To Opcache ====
  
 I am working on opcache compatibility. I am working on opcache compatibility.
- 
-==== New Constants ==== 
-None 
- 
-==== php.ini Defaults ==== 
-None 
  
 ===== Open Issues ===== ===== Open Issues =====
 None for now None for now
- 
-===== Unaffected PHP Functionality ===== 
-No BC break 
  
 ===== Future Scope ===== ===== Future Scope =====
- 
  
 ===== Proposed Voting Choices ===== ===== Proposed Voting Choices =====
rfc/list_default_value.txt · Last modified: 2017/09/22 13:28 by 127.0.0.1

Page Tools