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php出现 Notice: Undefined index: xxx 的解决方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
php出现 Notice: Undefined index: xxx 的解决方法Php_Notice_Undefined_index出现 "Undefined index: xxx "警告的原因：PHP 本身不需要事先声明变量即可直接使用，但是对未声明变量会有提示，最好的办法是使用变量之前先检查变量是否存在。出现"...
HTML Entity Decode [duplicate]
...allways work it works within a div tag but for example if you type in some php or css without the html it lets it through
– Paul Ledger
Dec 10 '13 at 23:53
4
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Rails: fields_for with index?
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@LucasRenan & @graphmeter - Please read the question again, you need to call <%= f.options[:child_index] %> in your rendered sub-form (In this case: _some_form.html.erb), not int the original builder. Answer updated for more cla...
How to get current PHP page name [duplicate]
I've a file called demo.php where I don't have any GET variables in the URL, so if I want to hide a button if am on this page I can't use something like this:
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Cross-Origin Request Headers(CORS) with PHP headers
I have a simple PHP script that I am attempting a cross-domain CORS request:
11 Answers
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ADB No Devices Found
...ep for doing this...visualgdb.com/tutorials/android/usbdebug/manualinstall.php
– abaldwin99
Aug 20 '15 at 17:44
1
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Detect Android phone via Javascript / jQuery
...to Android-site?
window.location = 'http://android.davidwalsh.name';
}
PHP:
$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
if(stripos($ua,'android') !== false) { // && stripos($ua,'mobile') !== false) {
header('Location: http://android.davidwalsh.name');
exit();
}
Edit : As poin...
How do I send a cross-domain POST request via JavaScript?
...u accomplish the cross domain POST from from.com/1.html to to.com/postHere.php (using PHP as an example). Note: you only need to set Access-Control-Allow-Origin for NON OPTIONS requests - this example always sets all headers for a smaller code snippet.
In postHere.php setup the following:
switch ...
Using crontab to execute script every minute and another every 24 hours [closed]
I need a crontab syntax which should execute a specific PHP script /var/www/html/a.php every minute. The execution on every minute must start at 00:00. The other task which must execute a script at 00:00 /var/www/html/reset.php (once every 24 hours).
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When should I use C++ private inheritance?
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I use it all the time. A few examples off the top of my head:
When I want to expose some but not all of a base class's interface. Public inheritance would be a lie, as Liskov substitutability is broken, whereas composition would mean writing a bunch of ...