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ssh “permissions are too open” error
...aven't tested every combination with every version. I have tried 0660 with 5.3p1-84 on CentOS 6, and the group not the primary group of the user but a secondary group, and it works fine.
This would typically not be done for someone's personal key, but for a key used for automation, in a situation w...
Rebase array keys after unsetting elements
...
Late answer but, after PHP 5.3 could be so;
$array = array(1, 2, 3, 4, 5);
$array = array_values(array_filter($array, function($v) {
return !($v == 1 || $v == 2);
}));
print_r($array);
...
PHP: Return all dates between two dates in an array [duplicate]
... ViNce does NOT include the end date for the period.
If you are using PHP 5.3+, your best bet is to use a function like this:
/**
* Generate an array of string dates between 2 dates
*
* @param string $start Start date
* @param string $end End date
* @param string $format Output format (Defaul...
What does the PHP error message “Notice: Use of undefined constant” mean?
...option constants for round() such as PHP_ROUND_HALF_DOWN only exist in PHP 5.3 or later.
So if you tried to use this feature in PHP 5.2, say:
$rounded = round($my_var, 0, PHP_ROUND_HALF_DOWN);
You'd get this error message:
Use of undefined constant PHP_ROUND_HALF_DOWN - assumed
'PHP_ROUND_...
cleanest way to skip a foreach if array is empty [duplicate]
...
Since PHP 5.3, it is possible to leave out the middle part of the ternary operator. So it may become foreach (($result ?: array()) as $item). And if $result may be null, then php 7 introduced null coalescing operator foreach (($result ...
浅谈Heatmap：网页热点图生成原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...用AWK来解析日志，当然你也可以使用Perl或别的你熟悉的语言：
#!/usr/bin/awk -f
BEGIN {
FS="&";
}
NF == 4 {
param["page_x"] = "0";
param["page_y"] = "0";
param["screen_width"] = "0";
param["screen_height"] = "0";
split($0,...
PHP passing $_GET in linux command prompt
... It's worth noting that, on our Centos 6 machine running PHP 5.3, calling php [script name] "a=1&b=2&c=3" will not populate the $_SERVER['QUERY_STRING'], but you can easily affect the same thing by referencing $_SERVER['argv'][1].
– Eric L.
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谈谈创业公司技术的工作模式 - 资讯 - 清泛网 - 专注C/C++及内核技术
...，根据人来选择不同的工作模式，就像豆瓣CEO说的，什么语言工具技术都没关系，最重要的是人、团队。相信经过大家的磨合， 每一个都是超人（技能、沟通、合作）的团队就是这么诞生的。
原创文章，转载请注明： 转载自...
Get the client IP address using PHP [duplicate]
...
In PHP 5.3 or greater, you can get it like this:
$ip = getenv('HTTP_CLIENT_IP')?:
getenv('HTTP_X_FORWARDED_FOR')?:
getenv('HTTP_X_FORWARDED')?:
getenv('HTTP_FORWARDED_FOR')?:
getenv('HTTP_FORWARDED')?:
getenv('REMOTE_ADDR');
...
Are negative array indexes allowed in C?
...
Found it in K&R Section 5.3, near the end: If one is sure that the elements exist, it is also possible to index backwards in an array; p[-1], p[-2], and so on are syntactically legal, and refer to the elements that immediately precede p[0]. Of cours...