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Increasing the maximum number of TCP/IP connections in Linux
...local_port_range = 32768 61000
net.ipv4.tcp_fin_timeout = 60
This basically means your system cannot consistently guarantee more than (61000 - 32768) / 60 = 470 sockets per second. If you are not happy with that, you could begin with increasing the port_range. Setting the range to 15000 61000 is...
PHPUnit assert that an exception was thrown?
...exception in the same test, makes testing for many expected exceptions a really clunky affair. I wrote an actual assertion to try to solve those problems.
– mindplay.dk
Aug 24 '15 at 19:08
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PHP's array_map including keys
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Here's my very simple, PHP 5.5-compatible solution:
function array_map_assoc(callable $f, array $a) {
return array_column(array_map($f, array_keys($a), $a), 1, 0);
}
The callable you supply should itself return an array with two values, i.e. r...
Apache Proxy: No protocol handler was valid
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For me on WAMP, I installed the modules above via the menu and had to uncomment LoadModule slotmem_shm_module modules/mod_slotmem_shm.so in httpd.conf
– Flion
Dec 20 '17 at 19:55
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File upload progress bar with jQuery
...you are searching for a pure jQuery solution, start here.
There is no overall jQuery solution for all browser. So you have to use a plugin. I am using dropzone.js, which have an easy fallback for older browsers. Which plugin you prefer depends on your needs. There are a lot of good comparing post o...
How do I catch an Ajax query post error?
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@Yuck $.post can accept an error callback using deferred objects. Take a look at my answer below for an example.
– Michael Venable
Aug 24 '12 at 21:18
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How to query MongoDB with “like”?
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Actually, it depends. If the query doesn't use an index, and must do a table scan, then it can certainly be expensive. If you're doing a 'starts with' regex query, then that can use an index. Best to run an explain() to see what'...
PHP: How to check if image file exists?
...ted. And then, it will only work when allow_url_fopen is activated in your PHP config
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PHP CURL CURLOPT_SSL_VERIFYPEER ignored
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Turning off the SSL verification pretty much removes all security of SSL anyway. You should fix your PHP configuration instead.
– Scopey
Aug 21 '17 at 22:31
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RadioButton单选按钮扩展集合 · App Inventor 2 中文网
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RadioButton单选按钮扩展
本页面收录了多个RadioButton（单选按钮）扩展，为App Inventor应用提供了单选按钮功能。...