[英]Sort PHP array of string (line) with two substring
I wanted to sort php array based on CRITICAL
, WARNING
, INFO
sub string and then CRITICAL
, WARNING
, INFO
sub array should be sorted again with the time stamp value contains in each line of string in acsending order. 我想基于CRITICAL
, WARNING
, INFO
子字符串对php数组进行排序,然后再对CRITICAL
, WARNING
, INFO
子数组进行排序,并按升序将字符串的每一行中包含的时间戳记值进行排序。 Basically at the end I need array to be sorted with CRITICAL
1st with time stamp sorted then WARNING
and then INFO
so on.. 基本上,最后我需要使用CRITICAL
1st对数组进行排序,对时间戳进行排序,然后对WARNING
进行排序,然后对INFO
进行排序。
First, define a function that turns the urgency of a line into a number. 首先,定义一个函数,将线的紧迫性转化为数字。
function urgency($line)
{
if (strpos($line, 'INFO') !== false) {
return 1;
} elseif (strpos($line, 'WARNING') !== false) {
return 2;
} elseif (strpos($line, 'CRITICAL') !== false) {
return 3;
}
return 0;
}
Then, assuming each element of your array contains a line of the file, you need to apply a decorator to keep the sort stable; 然后,假设数组的每个元素都包含文件的一行,则需要应用装饰器以保持排序的稳定性。 see also my earlier answer on the subject: 另请参阅我先前关于该主题的答案 :
array_walk($array, function(&$element, $index) {
$element = array($element, $index); // decorate
});
After applying the decorator, you sort the array; 应用装饰器后,对数组进行排序; I'm using a stable comparison helper: 我正在使用稳定的比较助手:
function stablecmp($fn)
{
return function($a, $b) use ($fn) {
if (($tmp = call_user_func($fn, $a[0], $b[0])) != 0) {
return $tmp;
} else {
return $a[1] - $b[1];
}
};
}
usort($array, stablecmp(function($a, $b) {
return urgency($b) - urgency($a);
}));
Finally, undecorate the array to produce the end result: 最后,取消装饰数组以产生最终结果:
array_walk($array, function(&$element) {
$element = $element[0];
});
Getting CRITICAL on the sorted order 在已排序的订单上获得关键
function my_cmp($a, $b){
$pieces_a = explode("CRITICAL", $a);
$pieces_b = explode("CRITICAL", $b);
if(!isset($pieces_a[1]) && isset($pieces_b[1])) {
return 1;
}
elseif(!isset($pieces_b[1]) && isset($pieces_a[1])) {
return -1;
}
elseif(!isset($pieces_a[1]) && !isset($pieces_b[1])) {
return 0;
}
return strcasecmp($pieces_a[1], $pieces_b[1]);
}
usort($arr, "my_cmp");
But this can only sort if the each line has non spaces I mean single word,. 但这只能在每行都有非空格的情况下进行排序,我的意思是单个单词。
Any other solution curious to know? 还有其他想知道的解决方案吗?
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