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string sanitizer for filename
...a whitelist of characters you are happy to be used? For example, you could allow just good ol' a-z, 0-9, _, and a single instance of a period (.). That's obviously more limiting than most filesystems, but should keep you safe.
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PHP - Move a file into a different folder on the server
I need to allow users on my website to delete their images off the server after they have uploaded them if they no longer want them. I was previously using the unlink function in PHP but have since been told that this can be quite risky and a security issue. (Previous code below:)
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PHP Fatal error: Cannot redeclare class
...x situation). The include_once tip helps to clarify an obscure feature of PHP.
– DavidHyogo
Mar 20 '13 at 2:12
2
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How do PHP sessions work? (not “how are they used?”)
...when his session is created.
it is stored in a cookie (called, by default, PHPSESSID)
that cookie is sent by the browser to the server with each request
the server (PHP) uses that cookie, containing the session_id, to know which file corresponds to that user.
The data in the sessions files is the ...
How to do error logging in CodeIgniter (PHP)
... wouldn't be publicly accessible- but you'll never know. Make sure to have all of this precautions in place if you change the default application/logs directory.
– Vincent Edward Gedaria Binua
Jan 29 '15 at 2:56
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Converting string to Date and DateTime
... Sadly, this answer has too many upvotes for anyone to pay attention. It's all copy paste these days.
– N.B.
Apr 3 '18 at 20:54
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Remove a string from the beginning of a string
... want, where you can limit your replace to part of your string:
http://nl3.php.net/manual/en/function.substr-replace.php (This will enable you to only look at the beginning of the string.)
You could use the count parameter of str_replace ( http://nl3.php.net/manual/en/function.str-replace.php ), th...
phpcms v9类别调用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
phpcms v9类别调用方法phpcms v9默认后台有类别管理，但是没有按照类别浏览的功能，本文正是为了弥补这个不足。phpcms v9默认后台有类别管理，但是没有按照类别浏览的功能，本文正是为了弥补这个不足。
在需要调用类别的地方...
Can an Option in a Select tag carry multiple values?
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I was actually wondering this today, and I achieved it by using the php explode function, like this:
HTML Form (in a file I named 'doublevalue.php':
<form name="car_form" method="post" action="doublevalue_action.php">
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Redirecting from HTTP to HTTPS with PHP
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This is a good way to do it:
<?php
if (!(isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' ||
$_SERVER['HTTPS'] == 1) ||
isset($_SERVER['HTTP_X_FORWARDED_PROTO']) &&
$_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https'))
{
$...