我使用 xampp 设置了本地开发环境，并且正在使用 laravel 5.2 和 php5.6.3。在没有数据库操作的情况下发出路由请求运行没有任何问题，但尝试使用雄辩的模型访问数据库会导致
Maximum execution time of 60 seconds exceeded
在执行数据库操作的不同点。这是错误日志
[2016-04-25 02:57:56] local.ERROR: exception 'Symfony'Component'Debug'Exception'FatalErrorException' with message 'Maximum execution time of 60 seconds exceeded' in C:'xampp'htdocs'pscosmetics'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php:539
Stack trace:
#0 {main}
[2016-04-25 03:05:57] local.ERROR: exception 'Symfony'Component'Debug'Exception'FatalErrorException' with message 'Maximum execution time of 60 seconds exceeded' in C:'xampp'htdocs'pscosmetics'vendor'laravel'framework'src'Illuminate'Support'Str.php:89
Stack trace:
#0 {main}
[2016-04-25 03:08:51] local.ERROR: exception 'Symfony'Component'Debug'Exception'FatalErrorException' with message 'Maximum execution time of 60 seconds exceeded' in C:'xampp'htdocs'pscosmetics'vendor'laravel'framework'src'Illuminate'Database'Query'Grammars'Grammar.php:834
Stack trace:
#0 {main}
[2016-04-25 03:11:04] local.ERROR: exception 'Symfony'Component'Debug'Exception'FatalErrorException' with message 'Maximum execution time of 60 seconds exceeded' in C:'xampp'htdocs'pscosmetics'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Model.php:539
Stack trace:
#0 {main}
[2016-04-25 03:35:59] local.ERROR: exception 'Symfony'Component'Debug'Exception'FatalErrorException' with message 'Maximum execution time of 60 seconds exceeded' in C:'xampp'htdocs'pscosmetics'vendor'laravel'framework'src'Illuminate'Database'Eloquent'Relations'Relation.php:204
Stack trace:
#0 {main}
[2016-04-25 03:40:42] local.ERROR: exception 'Symfony'Component'Debug'Exception'FatalErrorException' with message 'Maximum execution time of 60 seconds exceeded' in C:'xampp'htdocs'pscosmetics'vendor'laravel'framework'src'Illuminate'Database'Query'Grammars'Grammar.php:834
Stack trace:
#0 {main}
Trying the same db operation using vanilla php and PDO works without a hitch, phpMyadmin works ok.
What could cause this sort of issue?.
经过数小时的挖掘错误堆栈跟踪，我发现问题出在 Eloquent 急切加载上。
<?php
namespace App'Entities;
use Illuminate'Database'Eloquent'Model;
class Category extends Model {
protected $fillable = ['parent_id', 'name', 'slug', 'description', 'keywords'];
/**
This is what was causing the timeouts as it had it's own nested relationships
*/
protected $with = ['products'];
public function products() {
return $this->hasMany('App'Entities'Product', 'category_id');
}
}