大约有 40,000 项符合查询结果（耗时：0.0482秒） [XML]
Remove a string from the beginning of a string
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Plain form, without regex:
$prefix = 'bla_';
$str = 'bla_string_bla_bla_bla';
if (substr($str, 0, strlen($prefix)) == $prefix) {
$str = substr($str, strlen($prefix));
}
Takes: 0.0369 ms (0.000,036,954 seconds)
And with:
$prefix = 'bla_';
$str = 'bla_string...
MySQL Cannot drop index needed in a foreign key constraint
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You have to drop the foreign key. Foreign keys in MySQL automatically create an index on the table (There was a SO Question on the topic).
ALTER TABLE mytable DROP FOREIGN KEY mytable_ibfk_1 ;
share
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Concatenate two slices in Go
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Is this at all performant when the slices are quite big? Or does the compiler not really pass all the elements as parameters?
– Toad
Sep 24 '14 at 8:57
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Traits vs. interfaces
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Except that traits are not interfaces at all. Interfaces are specification that can be checked against. Traits cannot be checked against, hence they are implementation only. They are the exact opposite of interfaces. That line in the RFC is simply wrong...
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AngularJS - Trigger when radio button is selected
...d many ng-xxxx kind of options but couldn't find the one..
I just want to call some function in the controller when radio button is selected.
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What is the easiest way to push an element to the beginning of the array?
...the top of the page could be better formatted, it is very difficult to visually scan as it is. I found it because I knew the method name I was looking for :)
– mu is too short
May 22 '11 at 6:45
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Remove all special characters, punctuation and spaces from string
I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers.
16 A...
find filenames NOT ending in specific extensions on Unix?
Is there a simple way to recursively find all files in a directory hierarchy, that do not end in a list of extensions? E.g. all files that are not *.dll or *.exe
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Difference between fprintf, printf and sprintf?
...on>
#include <stdarg.h>
#include <stdio.h>
struct exception_fmt : std::exception
{
exception_fmt(char const* fmt, ...) __attribute__ ((format(printf,2,3)));
char const* what() const throw() { return msg_; }
char msg_[0x800];
};
exception_fmt::exception_fmt(char const* fm...
整合phpcms v9和discuz X3.2实现同步登陆、退出免激活 - 更多技术 - 清泛网...
...、退出免激活
首先，初学者请先查看视频教程《phpcms_v9与ucenter整合屏幕录制资料》，介绍了详细的操作步骤，简单易懂。
原理：phpcms中的phpsso类似于康盛的ucenter软件，也是一个整合多系统同步通信的解决方案，不过这里...