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laravel模型$castsl属性

知其黑、受其白发布时间：2020-12-30 19:36:13 ，浏览量：10

在laravel框架中，如果希望从数据库中取出的值就是我们希望的类型，可以使用laravel框架模型中的$casts属性值来将需要的字段转换成需要的类型，用法如下：


    
        
            
                
                
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	请求信息 : 2025-08-17 10:04:03 HTTP/2.0 GET : /home/article/detail/id/439058.html
运行时间 : 0.0480s ( Load:0.0123s Init:0.0014s Exec:0.0222s Template:0.0120s )
吞吐率 : 20.83req/s
内存开销 : 1,923.84 kb
查询信息 : 18 queries 0 writes 
文件加载 : 36
缓存信息 : 5 gets 0 writes 
配置加载 : 132
会话信息 : SESSION_ID=s7rkdgnsdb30qb589l0l1cbbp2
    
    
        
    
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	[ app_init ] --START--
Run Behavior\BuildLiteBehavior [ RunTime:0.000016s ]
[ app_init ] --END-- [ RunTime:0.000065s ]
[ app_begin ] --START--
Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000600s ]
[ app_begin ] --END-- [ RunTime:0.000637s ]
[ view_parse ] --START--
[ template_filter ] --START--
Run Behavior\ContentReplaceBehavior [ RunTime:0.000071s ]
[ template_filter ] --END-- [ RunTime:0.000111s ]
Run Behavior\ParseTemplateBehavior [ RunTime:0.009131s ]
[ view_parse ] --END-- [ RunTime:0.009216s ]
[ view_filter ] --START--
Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000199s ]
[ view_filter ] --END-- [ RunTime:0.000214s ]
[ app_end ] --START--
    
    
        
    
	[2] session_save_path(): open_basedir restriction in effect. File(/var/lib/php/session) is not within the allowed path(s): (/www/wwwroot/www.chaojiit.com/:/tmp/) /www/wwwroot/www.chaojiit.com/ThinkPHP/Common/functions.php 第 1239 行.
[8192] Array and string offset access syntax with curly braces is deprecated /www/wwwroot/www.chaojiit.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 59 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 37 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 98 行.
[8] Trying to access array offset on value of type null /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 98 行.
[8] Undefined variable: user /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 99 行.
[8] Trying to access array offset on value of type null /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 99 行.
[8] Undefined variable: pinglun_list /www/wwwroot/www.chaojiit.com/Application/Runtime/Cache/Home/3c8a1a47a3534a7b1252c226abfc3928.php 第 108 行.
    
    
        
    
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SELECT `value` FROM `configuration` WHERE `name` = 'site_name' LIMIT 1   [ RunTime:0.0003s ]
SHOW COLUMNS FROM `menu` [ RunTime:0.0007s ]
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SELECT * FROM `menu` WHERE `fid` = 1 AND `status` = 1  [ RunTime:0.0002s ]
SELECT * FROM `menu` WHERE `fid` = 2 AND `status` = 1  [ RunTime:0.0002s ]
SELECT * FROM `menu` WHERE `fid` = 3 AND `status` = 1  [ RunTime:0.0001s ]
SELECT * FROM `menu` WHERE `fid` = 4 AND `status` = 1  [ RunTime:0.0001s ]
SHOW COLUMNS FROM `article` [ RunTime:0.0006s ]
SELECT * FROM `article` WHERE `id` = 439058 LIMIT 1   [ RunTime:0.0005s ]
SHOW COLUMNS FROM `bloger` [ RunTime:0.0007s ]
SELECT * FROM `bloger` WHERE `id` = 807 LIMIT 1   [ RunTime:0.0002s ]
SELECT COUNT(*) AS tp_count FROM `article` WHERE `bloger_id` = 807 LIMIT 1   [ RunTime:0.0001s ]
SHOW COLUMNS FROM `article_content` [ RunTime:0.0004s ]
SELECT `content` FROM `article_content` WHERE `article_id` = 439058 LIMIT 1   [ RunTime:0.0004s ]
SHOW COLUMNS FROM `article_cate` [ RunTime:0.0004s ]
SELECT `name` FROM `article_cate` WHERE `id` = 343 LIMIT 1   [ RunTime:0.0002s ]
SELECT * FROM `article` WHERE `bloger_id` = 807 ORDER BY view_count desc LIMIT 0,10   [ RunTime:0.0003s ]
    
    
        
    
	    
    
    



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