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What are the ways to make an html link open a folder
...ery specific environment I know). In this instance, I use a html link to a php file and run:
shell_exec('cd C:\path\to\file');
shell_exec('start .');
This opens a local Windows explorer window.
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Handle file download from ajax post
...easily download a file from an AJAX call by setting the correct headers in PHP's response:
Setting headers server-side
header("HTTP/1.1 200 OK");
header("Pragma: public");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
// The optional second 'replace' parameter indicates whe...
我帮儿子用App Inventor 2给遥控车装了"蓝牙大脑"，手机一划车就...
...景下比较麻烦，好在我的场景主要是手机单向发送指令，问题不大。
最终效果
成果超出预期：
- 手机放在沙发上，20米内流畅控制（HC-05标称10米，实测无遮挡30米都可控）
- 方向盘实时映射，没有肉眼可见的延迟
- 儿子...
Difference between id and name attributes in HTML
...ipt/jQuery (has to be unique in a page)
name is used for form handling in PHP when a form is submitted via HTML (has to be unique in a form - to some extent, see Paul's comment below)
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CHECK constraint in MySQL is not working
... be implemented in MySQL.
See this bug report: https://bugs.mysql.com/bug.php?id=3464
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Auto increment in phpmyadmin
I have an existing database using PHP, MySQL and phpMyAdmin.
9 Answers
9
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Convert Base64 string to an image file? [duplicate]
...4_decode($image));
You can create 'public_feeds' in laravel's filesystem.php-
'public_feeds' => [
'driver' => 'local',
'root' => public_path() . '/uploads/feeds',
],
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How to strip HTML tags from string in JavaScript? [duplicate]
... much time on this, here is what we did: we ended up using a function from php.js (which is a pretty nice library for those more familiar with PHP but also doing a little JavaScript every now and then):
http://phpjs.org/functions/strip_tags:535
It seemed to be the only piece of JavaScript code whi...
How to process each line received as a result of grep command
...nd | grep --line-buffered "your search"
Real life exemple with a Symfony PHP Framework router debug command ouput, to grep all "api" related routes:
php bin/console d:r | grep --line-buffered "api"
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Accessing @attribute from SimpleXML
...ode. You can then var_dump the return value of the function.
More info at php.net
http://php.net/simplexmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
...