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修改centos字符集导致桌面进不去的一系列问题 - 更多技术 - 清泛网 - 专注C...
修改centos字符集导致桌面进不去的一系列问题为了使 WINDOWS–PL SQL-LINUX–ORACLE 的字符集一致怎么修改WINDOWS下的 PL SQL 字符集请参看http: user.qzone.qq.com 587...为了使 WINDOWS –PL/SQL-LINUX –ORACLE 的字符集一致
怎么修改WINDOW...
How to solve PHP error 'Notice: Array to string conversion in…'
I have a PHP file that tries to echo a $_POST and I get an error, here is the code:
5 Answers
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How do I expire a PHP session after 30 minutes?
...y registered session. And that is cost-intensive.
Furthermore, when using PHP's default session.save_handler files, the session data is stored in files in a path specified in session.save_path. With that session handler, the age of the session data is calculated on the file's last modification date...
How can I select and upload multiple files with HTML and PHP, using HTTP POST?
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This is possible in HTML5. Example (PHP 5.4):
<!doctype html>
<html>
<head>
<title>Test</title>
</head>
<body>
<form method="post" enctype="multipart/form-data">
<input ...
Check if PHP session has already started
I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
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How to call a PHP function on the click of a button
I have created a page called functioncalling.php that contains two buttons, Submit and Insert .
12 Answers
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how to delete all cookies of my website in php
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PHP setcookie()
Taken from that page, this will unset all of the cookies for your domain:
// unset cookies
if (isset($_SERVER['HTTP_COOKIE'])) {
$cookies = explode(';', $_SERVER['HTTP_COOKIE']);
foreach($cookies as ...
Are PHP include paths relative to the file or the calling code?
I'm having trouble understanding the ruleset regarding PHP relative include paths. If I run file A.PHP- and file A.PHP includes file B.PHP which includes file C.PHP, should the relative path to C.PHP be in relation to the location of B.PHP, or to the location of A.PHP? That is, does it matter whic...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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What's the difference between echo, print, and print_r in PHP?
...en debugging
No return value
var_export()
Outputs a human-readable and PHP-executable representation of any one value
Accepts not just strings but other types including arrays and objects, formatting them to be readable
Uses a different output format to both print_r() and var_dump() - resulting ...