php - string trim
Please help me on this.
$str = "col_1 col_2 col_3
row1 row2 row3
row12 row22 row33";
$arr = explode("\n", $str);
foreach($arr as $line)
{
$temp_arr = explode(WHAT HERE, $line);
}
How do I explode each line into array??
I want $temp_arr[0] = col_1, $temp_arr[1] = col2, $temp_arr[2] = col_3
next line will have $temp_arr[0] = row1, $temp_arr[1] = row2
You guys are awesome. It works on my example but it doesn't work on my real problem. I export windows xp processes and want to explode them.
Caption CommandLine ProcessId System Idle Process 0 System 4 smss.exe \SystemRoot\System32\smss.exe 604 avgrsx.exe C:\PROGRA~1\AVG\AVG10\avgrsx.exe /restart /boot 692 csrss.exe C:\WINDOWS\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,3072,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16 780 winlogon.exe winlogon.exe 820 services.exe C:\WINDOWS\system32\services.exe 880 lsass.exe C:\WINDOWS\system32\lsass.exe 892 nvsvc32.exe C:\WINDOWS\system32\nvsvc32.exe 1052 svchost.exe C:\WINDOWS\system32\svchost -k DcomLaunch 开发者_开发知识库 1168 svchost.exe C:\WINDOWS\system32\svchost -k rpcss 1240 svchost.exe C:\WINDOWS\System32\svchost.exe -k netsvcs 1328 svchost.exe C:\WINDOWS\system32\svchost.exe -k NetworkService 1404 svchost.exe C:\WINDOWS\system32\svchost.exe -k LocalService 1520 spoolsv.exe C:\WINDOWS\system32\spoolsv.exe 1664 explorer.exe C:\WINDOWS\Explorer.EXE 1956 jqs.exe "C:\Program Files\Java\jre6\bin\jqs.exe" -service -config "C:\Program Files\Java\jre6\lib\deploy\jqs\jqs.conf" 460 avgtray.exe "C:\Program Files\AVG\AVG10\avgtray.exe" 1156 rundll32.exe "C:\WINDOWS\system32\RUNDLL32.EXE" C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit 1204 alg.exe C:\WINDOWS\System32\alg.exe 1376 AVGIDSMonitor.exe "C:\Program Files\AVG\AVG10\Identity Protection\agent\bin\avgidsmonitor.exe" 660 iexplore.exe "C:\Program Files\Internet Explorer\iexplore.exe" 620 OUTLOOK.EXE "C:\Program Files\Microsoft Office\Office12\OUTLOOK.EXE" /recycle 1884 SQLyog.exe "C:\Program Files\SQLyog\SQLyog.exe" 2596 UniKeyNT.exe "C:\Program Files\unikey40RC2-1101-win32\UniKeyNT.exe" 964 avgcsrvx.exe C:\Program Files\AVG\AVG10\avgcsrvx.exe /pipeName=4f758821-d931-4842-ae08-b81fe89b843a /coreSdkOptions=0 /binaryPath="C:\Program Files\AVG\AVG10\" /registryPath="SYSTEM\CurrentControlSet\Services\Avg\Avg10" 3788 svchost.exe C:\WINDOWS\system32\svchost.exe -k imgsvc 3604 mstsc.exe "C:\WINDOWS\system32\mstsc.exe" 3868 notepad++.exe "C:\Program Files\Notepad++\notepad++.exe" 4072 notepad.exe "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Documents and Settings\Quy Nguyen\Desktop\cool.txt 2228 cmd.exe "C:\WINDOWS\system32\cmd.exe" 2552 wmic.exe WMIC /OUTPUT:C:\ProcessList.txt PROCESS get Caption,Commandline,Processid 2480 wmiprvse.exe C:\WINDOWS\system32\wbem\wmiprvse.exe 1744
replace
$temp_arr = explode(WHAT HERE, $line);
with
$temp_arr = preg_split('/\s+/', $line, -1, PREG_SPLIT_NO_EMPTY);
Edit: added PREG_SPLIT_NO_EMPTY
OK, so your question changed a bit. This code should do exactly what you want:
$processes = 'the list you posted';
$temp = preg_split('/\s*(?:\r?\n)+/', $processes, -1, PREG_SPLIT_NO_EMPTY);
$process_list = array();
foreach ($temp as $process) {
$process_list[] = array_pad( // array_pad makes the length consistent
preg_split(
'/\s{2,}/', // match only 2 or more consecutive spaces for splitting
$process,
3,
PREG_SPLIT_NO_EMPTY), // ignore empty matches (i.e., end of line)
3, // pad array to a length of 3
''
);
}
$process_list_final = array();
$process_list_titles = array_shift($process_list);
foreach ($process_list as &$plist_item) {
$plist_item = array_combine($process_list_titles, $plist_item);
}
It probably needs a bit of cleanup, but you can do that on your own =)
Some functions for you to look up:
- preg_split
- array_pad
- array_shift
- array_combine
You probably want preg_split.
$str = "col_1 col_2 col_3
row1 row2 row3
row12 row22 row33";
$arr = explode("\n", $str);
foreach($arr as $line)
{
$temp_arr = preg_split("#\s+#", $line, -1, PREG_SPLIT_NO_EMPTY);
}
preg_split, unlike explode, allows you to use something called regular expressions to split a string into chunks. In this case:
#"Begin the regex"\s+means "one or more consecutive whitespaces".- -1 means there should not be any limit to the number of matches (change this to your preferred number if you'd like)
PREG_SPLIT_NO_EMPTYis a special constant which tells the method to never return an empty result so you don't need to worry about this:row1
EDIT
Just noticed your edit. You can modify the regular expression to "#\s++#" to make it search for at least 2 spaces, and you can keep adding +'s, or you can use braces to do the job for you. You can see more here.
$temp_arr = explode("\n", $line);
In PHP you can do that very differently in php.
I dont know what the real data you have to explode, but if you have just space-delimited data you can do just that:
foreach ($arr as $line) {
// removing double-spaces
while(strpos($line, ' ') !== false) $line = str_replace(' ', ' ', $line);
// trim leading and trailing spaces. you can safely move it to explode
$line = trim($line);
// will be better if you replace double-spaces before. it will be faster a lot.
//-> just space character (0x20) here now (!)
$temp_arr = explode(' ', $line);
}
Also you can split array to variables instantly with list. Just like that:
list( $row1, $row2, $lastrow ) = explode(" ", $line);`
Don't use preg_split for that simple problem. Too slowly for that.
Good luck)
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