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php 将图片转换 base64 格式与还原生成图片

知其黑、受其白发布时间：2022-07-22 20:07:20 ，浏览量：5

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场景
php 将图片转换 base64 格式
php 将 base64 格式的图片存储到本地

场景

有一个需要将图片转换成 base64 的格式来发送到客户端，用来隐藏图片的链接地址。那么下面就来说一说 php 脚本中，将图片转换成 base64 格式以及 base64 格式的图片转成本地图片的方法。

php 将图片转换 base64 格式


    
        
            
                
                
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	    基本
        文件
        流程
        错误
        SQL
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	请求信息 : 2025-08-10 01:24:57 HTTP/2.0 GET : /home/article/detail/id/437951.html
运行时间 : 0.0527s ( Load:0.0120s Init:0.0013s Exec:0.0274s Template:0.0120s )
吞吐率 : 18.98req/s
内存开销 : 1,924.15 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=fa6hnoiaros1tm3ppjggm5mcve
    
    
        
    
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	[ app_init ] --START--
Run Behavior\BuildLiteBehavior [ RunTime:0.000012s ]
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[ app_begin ] --START--
Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000509s ]
[ app_begin ] --END-- [ RunTime:0.000550s ]
[ view_parse ] --START--
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Run Behavior\ContentReplaceBehavior [ RunTime:0.000068s ]
[ template_filter ] --END-- [ RunTime:0.000111s ]
Run Behavior\ParseTemplateBehavior [ RunTime:0.008660s ]
[ view_parse ] --END-- [ RunTime:0.008763s ]
[ view_filter ] --START--
Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000551s ]
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[ 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:0.0002s ]
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0.0527s