php7 foreach
In PHP 7, foreach does not use the internal array pointer. In order to be able to directly modify array elements within the loop precede $value with &. In that case ... ,foreach ¶. (PHP 4, PHP 5, PHP 7). foreach 语法结构提供了遍历数组的简单方式。 foreach 仅能够应用于数组和对象，如果尝试应用于其他数据类型的变量，或者未 ... , In PHP 7, if you iterate an array by value, the copy will be done lazily, only when and if the array is actually modified. If you iterate an array by ..., $array = [0, 1, 2]; foreach ($array as &$val) var_dump(current($array)); } PHP7運行的結果會打印三次int(0)，也就是説數組的內部指針併沒有 ..., x and before, we were able to modify the internal array pointer while iterating over an array with the foreach statement. However in PHP 7, this ..., 一、foreach()循環對數組內部指針不再起作用,在PHP7之前，當數組通過foreach叠代時，數組指針會移動。現在開始，不再如此，見下面代碼。
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 php7 foreach 相關參考資料
foreach - Manual - PHP
In PHP 7, foreach does not use the internal array pointer. In order to be able to directly modify array elements within the loop precede $value with &. In that case ... https://www.php.net foreach - PHP
foreach ¶. (PHP 4, PHP 5, PHP 7). foreach 语法结构提供了遍历数组的简单方式。 foreach 仅能够应用于数组和对象，如果尝试应用于其他数据类型的变量，或者未 ... https://www.php.net foreach changes in PHP7 - Stack Overflow
In PHP 7, if you iterate an array by value, the copy will be done lazily, only when and if the array is actually modified. If you iterate an array by ... https://stackoverflow.com foreach 修改- PHP7新特性- PHP7
$array = [0, 1, 2]; foreach ($array as &$val) var_dump(current($array)); } PHP7運行的結果會打印三次int(0)，也就是説數組的內部指針併沒有 ... http://www.php7.site Learn How to do Changes to Foreach Statement in PHP 7
x and before, we were able to modify the internal array pointer while iterating over an array with the foreach statement. However in PHP 7, this ... https://blog.eduonix.com PHP7新特性foreach 修改示例介紹- IT閱讀 - ITREAD01.COM
一、foreach()循環對數組內部指針不再起作用,在PHP7之前，當數組通過foreach叠代時，數組指針會移動。現在開始，不再如此，見下面代碼。 http://www.itread01.com |