为什么这段代码 $results = \Db::select('select * from engegraph_forms_membros where id = ?', [1]);不工作？

Question

我的组件上有这段代码。

$results = \Db::select('select * from engegraph_forms_membros where id = ?', [1]);
echo $results;

但是我有这个错误 "Array to string conversion"

有人可以帮助新手??

Answer 1

问题是您将数组打印为字符串。

returning result of \Db::select is an array so to print array you can use print_r()

$results = \Db::select('select * from engegraph_forms_membros where id = ?', [1]);
echo '<pre/>'; print_r($result); exit();

您可以像这样打印结果，或者您可以使用内置调试器功能。

$results = \Db::select('select * from engegraph_forms_membros where id = ?', [1]);
dd($result);
// or dump($result);

if you use dump/dd function you dont need to worry it can print anything. dd [die and dump] stops php flow to next statements. dump will continues flow so you can print another values/or/execute next statements if you need.

如有疑问请补充。

为什么这段代码 $results = \Db::select('select * from engegraph_forms_membros where id = ?', [1]);不工作？

Why this code $results = \Db::select('select * from engegraph_forms_membros where id = ?', [1]); dont work?

database

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