rfc:functional-elements
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rfc:functional-elements [2008/03/06 02:07] – Adding abstractions lstrojny | rfc:functional-elements [2008/03/16 14:09] – Adding use case titles lstrojny | ||
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- | ====== Functional elements | + | This RFC is still in progress |
+ | ====== Functional elements | ||
==== Abstract ==== | ==== Abstract ==== | ||
- | A common pattern in PHP is iterating through a list of objects and executing certain methods of the function. This is especially common when it comes to 1: | + | A common pattern in PHP is iterating through a list of objects and executing certain methods of the objects. This is especially common when it comes to 1: |
==== Current usage patterns ==== | ==== Current usage patterns ==== | ||
- | === UC-1 === | + | === UC-1: Iterating over an aggregation of objects |
<code php> | <code php> | ||
foreach ($list as $element) { | foreach ($list as $element) { | ||
Line 11: | Line 12: | ||
</ | </ | ||
- | === UC-2 === | + | === UC-2: Iterating over an aggregation of objects and keeping the results |
<code php> | <code php> | ||
$result = array(); | $result = array(); | ||
Line 19: | Line 20: | ||
</ | </ | ||
- | === UC-3 === | + | === UC-3: Iterating over an aggregtion of objects and conditionally executing a method |
<code php> | <code php> | ||
foreach ($list as $element) { | foreach ($list as $element) { | ||
Line 28: | Line 29: | ||
</ | </ | ||
- | === UC-4 === | + | === UC-4: Iterating over an aggregation of objects and conditionally executing a method while keeping the results |
<code php> | <code php> | ||
$result = array(); | $result = array(); | ||
Line 39: | Line 40: | ||
==== Extracted functions ==== | ==== Extracted functions ==== | ||
- | === spl_object_list_call() === | + | === spl_iterator_element_call() === |
<code php> | <code php> | ||
array|bool spl_iterator_element_call( | array|bool spl_iterator_element_call( | ||
Line 49: | Line 50: | ||
</ | </ | ||
+ | Iterating over a list of objects, call method " | ||
+ | <code php> | ||
+ | $result = spl_iterator_element_call($list, | ||
+ | </ | ||
+ | |||
+ | Iterating over a list of objects, call methods " | ||
+ | <code php> | ||
+ | $result = spl_iterator_element_call($list, | ||
+ | </ | ||
+ | |||
+ | Iterating over a list of objects, call method ' | ||
+ | <code php> | ||
+ | $result = spl_iterator_element_call($list, | ||
+ | </ | ||
+ | |||
+ | === spl_iterator_element_call_conditional() === | ||
<code php> | <code php> | ||
array|mixed spl_iterator_element_call_conditional( | array|mixed spl_iterator_element_call_conditional( |
rfc/functional-elements.txt · Last modified: 2017/09/22 13:28 by 127.0.0.1