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is_file or file_exists in PHP

...xists in directory or false if file not exists as I check in 2020 might be php version update it – heySushil Mar 29 at 16:43 add a comment  |  ...
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WordPress asking for my FTP credentials to install plugins

... Try to add the code in wp-config.php: define('FS_METHOD', 'direct'); share | improve this answer | follow | ...
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Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?

... check that a variable we were using as a number, was actually numeric. In PHP you should widely use a set of functions to check that inputs are integers, floats, alphanumeric etc. But when it comes to SQL, heed most the value of the prepared statement. The above code would have been secure if it ...
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Creating a config file in PHP

I want to create a config file for my PHP project, but I'm not sure what the best way to do this is. 10 Answers ...
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cleanest way to skip a foreach if array is empty [duplicate]

...oid nesting my code with an unnecessary if statement. If $items is empty php throws an error. 11 Answers ...
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deque iterator not dereferencable 问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

deque iterator not dereferencable 问题STL里面出现这个问题,纠结了半天,不知道什么原因。当然deque iterator not dereferencable。这个是deque出问题,vector、list也可以出...STL里面出现这个问题,纠结了半天,不知道什么原因。 当然deque iterat...
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怎么解决MQTT连接掉线,自动连接问题,同时解决,反复断开连接,断开连接问...

解决MQTT退出后台后掉线自动连接问题,现在可以实现自动连接,但是在返回控制界面的时候,反复断开反复链接,还有切换页面的时候返回也是同样的问题,还有连接一个服务器,需要每个页面单独设置MQTT连接吗,是不是可以...
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upstream sent too big header while reading response header from upstream

...ove the message, is it streaming with logged lines preceding the message? PHP message: PHP Notice: Undefined index: Example snippet from a loop my log file: 2015/11/23 10:30:02 [error] 32451#0: *580927 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: Firstname in /srv/www/class...
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PHP: Storing 'objects' inside the $_SESSION

... is made, the class declaration/definition has already been encountered by PHP or can be found by an already-installed autoloader. otherwise it would not be able to deserialize the object from the session store. share ...
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Adding minutes to date time in PHP

...ck with adding X minutes to a datetime, after doing lots of google'ing and PHP manual reading, I don't seem to be getting anywhere. ...