How to solve the brace error in thinkphp5

During the development process using ThinkPHP5, everyone may have encountered various problems, the most common of which is grammatical errors. Among them, there are sometimes some minor problems with the use of braces in code blocks. This article will focus on the thinkphp5 brace error and its solution.

1. Problem Description

During the development process, we sometimes encounter errors caused by missing braces outside or inside code blocks.

The following is an example:

    if($file->validate(['size'=>2048000,'ext'=>'jpg,png,gif'])->move($path)){
      return json_encode(['code' => 1, 'msg' => '上传成功']);
    }
    else
      return json_encode(['code' => 0, 'msg' => '上传失败']);

In this code, due to the lack of braces in the else statement, the system cannot correctly identify this statement during parsing, causing the program to appear. mistake.

2. Solution

When solving the problem of brace errors, we only need to ensure that the braces inside and outside the code block appear in pairs. A more specific solution is as follows:

1) Ensure that the braces outside the code block exist

in the following code:

    if($file->validate(['size'=>2048000,'ext'=>'jpg,png,gif'])->move($path)){
      return json_encode(['code' => 1, 'msg' => '上传成功']);
    }
    else
      return json_encode(['code' => 0, 'msg' => '上传失败']);

We can else## Adding curly brackets to the # statement can avoid errors. The code is as follows:

    if($file->validate(['size'=>2048000,'ext'=>'jpg,png,gif'])->move($path)){
      return json_encode(['code' => 1, 'msg' => '上传成功']);
    }
    else {
      return json_encode(['code' => 0, 'msg' => '上传失败']);
    }

2) Ensure that the curly brackets within the code block exist

In the following code:

    $data = [
      ['id' => 1, 'name' => '小明'],
      ['id' => 2, 'name' => '小红'],
      ['id' => 3, 'name' => '小刚']
    ]
    
    foreach($data as $val)
      $name = $val['name'];
      echo $name;

We can do this in the

foreach statement Add curly brackets to the code block to avoid errors. The code is as follows:

    $data = [
      ['id' => 1, 'name' => '小明'],
      ['id' => 2, 'name' => '小红'],
      ['id' => 3, 'name' => '小刚']
    ]
    
    foreach($data as $val) {
      $name = $val['name'];
      echo $name;
    }

Summary

In the process of writing code using ThinkPHP5, syntax errors are inevitable. When dealing with brace errors, we only need to follow the above solutions to ensure that braces inside and outside the code block appear in pairs to effectively avoid errors.

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