我需要php帮助/专业知识来调整/更改这个preg_match_all函数。我想要做的是为缺少的有序对创建默认值。它正确匹配数据,但我需要一些逻辑来添加一些默认值。 (参见下面的EXPECTING数据输出)。这可以在同一个功能中处理吗?谢谢!
preg_match_all摘录:
foreach ($InputFile as $line){
preg_match_all("/([0-9])-([^=]+)=([^;]+);/", $line, $matches, PREG_SET_ORDER);
$LineData = array();
foreach ($matches as $information)
$LineData[$information[2]] = $information[3];
$data[] = $LineData;
print_r($LineData);
}
数据文件的顺序最多为(8)个:
1-Server
2-Logdate
3-BackupSet
4-StartTime
5-Duration
6-DBServer
7-Size
8-Status
但是文件中有实例,其中有些行没有所有属性,例如5-Duration,7-Size,8-Status。我想为这些属性设置一个默认值,如:
5-Duration => 0
7-Size => 0
8-Status => incomplete
数组输出:(当前)
Array ( [Server] => hostname3.prop.abc
[Logdate] => Wed Jan 05 2011
[BackupSet] => rfoo101.az1
[StartTime] => 20110105000004
[Duration] => 00:56:47
[DBServer] => rfoo101.prop.az1.kaz.com
[Size] => 56.51
[Status] => Backup succeeded )
Array ( [Server] => hostname3.prop.abc
[Logdate] => Wed Jan 05 2011
[BackupSet] => bar202.az4_lvm
[StartTime] => 20110105040003
[DBServer] => bar202.prop.az4.kaz.com)
Array ( [Server] => hostname10.prop.az2
[Logdate] => Thu Jan 06 2011
[BackupSet] => bar201_az2_lvm
[StartTime] => 20110106151622
[DBServer] => bar201.prop.az2.kaz.com
[Status] => Backup failed )
期待数据输出:(具有默认值)
Array ( [Server] => hostname3.prop.abc
[Logdate] => Wed Jan 05 2011
[BackupSet] => rfoo101.az1
[StartTime] => 20110105000004
[Duration] => 00:56:47
[DBServer] => rfoo101.prop.az1.kaz.com
[Size] => 56.51
[Status] => Backup succeeded )
Array ( [Server] => hostname3.prop.abc
[Logdate] => Wed Jan 05 2011
[BackupSet] => bar202.az4_lvm
[StartTime] => 20110105040003
[Duration] => 0
[DBServer] => bar202.prop.az4.kaz.com
[Size] => 0
[Status] => incomplete)
Array ( [Server] => hostname10.prop.az2
[Logdate] => Thu Jan 06 2011
[BackupSet] => bar201_az2_lvm
[StartTime] => 20110106151622
[Duration] => 0
[DBServer] => bar201.prop.az2.kaz.com
[Size] => 0
[Status] => Backup failed )
每个帮助的代码更改:
<?php
$defaults = array(
'Duration' => 0,
'Size' => 0,
'Status' => 'incomplete' );
$data = array();
$InputFile = file("test.txt");
foreach ($InputFile as $line){
preg_match_all("/([0-9])-([^=]+)=([^;]+);/", $line, $matches, PREG_SET_ORDER);
$LineData = array();
foreach ($matches as $information)
$LineData[$information[2]] = $information[3];
$data[] = array_merge($defaults, $LineData);
}
print_r($data);
?>
答案 0 :(得分:1)
您可以创建一个默认值数组,然后使用array_merge()
创建一个具有默认值的输出数组,除非被解析后的匹配值覆盖:
$defaults = array(
'Duration' => 0,
'Size' => 0,
'Status' => 'incomplete' );
$output_with_defaults = array_merge($defaults, $output_without_defaults);
由于array_merge()
:
如果输入数组具有相同的字符串键,则该键的后一个值将覆盖前一个键。
对于您的情况,您需要修改此行:
$data[] = $LineData;
是...
$data[] = array_merge($defaults, $LineData);
(并在任何当前代码开始之前声明默认数组 - 它不需要在任何循环内。)
答案 1 :(得分:0)
您可能可以指定默认数组结构,例如
if (!is_array($LineData))
{
$LineData =
array(
'Server' => ...,
'Logdate' => ...,
'BackupSet' => ...,
'StartTime' => ...,
'Duration' => 0,
'DBServer' => ...,
'Size' => 0,
'Status' => 'incomplete',
);
}
foreach ($matches as $information)
{
$LineData[$information[2]] = $information[3];
}
$data[] = $LineData;