我用PHP 7.1中的[]在PHP 5.6中创建了数组，但出现致命错误 [英] i created arrays in PHP 5.6 with [] in PHP 7.1 give fatal error

问题描述

在PHP 5.6中可以正常工作，但在PHP 7.1中会出现致命错误:未捕获错误:字符串不支持[]运算符

in PHP 5.6 this work fine but in PHP 7.1 give Fatal error: Uncaught Error: [] operator not supported for strings

$result->execute();
$result->bind_result($id, $name);   
while($result->fetch()){
    $datos[]=array(
        $id => $name
    );
}

推荐答案

从PHP 7.1开始，当您访问数组之类的非数组变量(在这种情况下为字符串)时，将引发致命错误.

As of PHP 7.1, when you access a non-array variable (in this case a string) like an array, a fatal error will be thrown.

首先使用$datos = [];初始化数组.这将覆盖您之前设置的所有内容，并将此变量显式设置为数组:

Initialize the array first, with $datos = [];. This will overwrite anything you have set earlier, and explicitly set this variable as an array:

$result->execute();
$result->bind_result($id, $name);
$datos = [];
while($result->fetch()){
    $datos[]=array(
        $id => $name
    );
}

如果您尝试创建$id => $name的数组，则以下代码应该有效:

If you're trying to create an array of $id => $name, the following code should work:

$result->execute();
$result->bind_result($id, $name);
$datos = [];
while($result->fetch()){
    $datos[ $id ] = $name;
}

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