Doc #79402 [Opn->Fbk]: Description fix suggestion

Edit report at https://bugs.php.net/bug.php?id=79402&edit=1 ID: 79402 Updated by: cmb@php.net Reported by: simongcc at gmail dot com Summary: Description fix suggestion -Status: Open +Status: Feedback Type: Documentation Problem Package: Documentation problem PHP Version: Irrelevant -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: Isn't that already sufficiently explained: | The + operator returns the right-hand array appended to the | left-hand array; for keys that exist in both arrays, the elements | from the left-hand array will be used, and the matching elements | from the right-hand array will be ignored. Previous Comments: ------------------------------------------------------------------------ [2020-03-22 00:40:32] simongcc at gmail dot com Description: ------------ --- From manual page: https://php.net/language.operators.array --- It is only a problem in description. In the docs, it states that $a + $b is Union and it is Union of $a and $b. But it is not completely reflecting the characteristic of the Union in PHP. Since strictly speaking, an Union should be mutually inclusive of different things. In PHP, it is only an union of key regardless of value. So it should be written as Union of the key in $a and $b and based on $a or vice versa if it is $b + $a. (Because when there is/are key(s) exist(s) in the first variable, the same key(s) in the second variable will be ignored) Test script: --------------- $a = array('something' => 'interesting', 2); $b = array('another' => 'interesting thing', 0 => 3); $c = $a + $b; $d = $b + $a; print_r($c); print_r($d); ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79402&edit=1