php question

antony_csf · 09-13-2004, 10:52 PM

Dear all,

I have a problem on extract all the line numbers from a java error log

=====================================================
/var/www/html/onJava/modules/onlineide/studentData/s1234567/java/S1T1/HealthIndexPrinter.java:10: not a statement
int;
^
/var/www/html/onJava/modules/onlineide/studentData/s1234567/java/S1T1/HealthIndexPrinter.java:11: 'try' without 'catch' or 'finally'
try{}
^
2 errors
=====================================================

HealthIndexPrinter.java:10:
HealthIndexPrinter.java:11:

how can i extract the 10, 11

I am a newbie on preg_match function??

I read the php.net ref but the example is very complicated.

would anybody expert on it?? would anybody can give me simple example related on my situation??

thx for help!!

Mega Man X · 09-14-2004, 02:29 AM

I did not understand your question at all. You are asking to help with PHP, yet you posted error messages of Java and asks to remove the lines?. For what I understand, line 10 and 11 have errors, programming errors and for what I understand, they are:

Line 10 = you've only the datatype int. Datatypes are followed by datatype + name, e.g: int someInt;

Line 11 = you are using try without catch statment. Usually, you've to:

try {
do this;
do this method;
do this method;
} catch (Exception Type1 e){
// do whatever
}

and that's what you are nothing doing correctly. Unless you provide some real source code for us to debug, and explain what you are actually trying to do, it will be very difficult to help you...

Regards!

antony_csf · 09-14-2004, 09:56 PM

Use php function to extract error log line number from file

thx~~! not debug the java program !! sorry for not clear

Cedrik · 09-15-2004, 04:06 AM

Try :

PHP Code:



$count = 0; 
$file = "/path/to/your/log"; 
 
// list of numbered line that you want 
$lines_num = Array(10,11); 
 
$fp = fopen($file, "r") or die("can't open $file to read"); 
 
while (!feof($fp)) { 
    $line = fgets($fp, 4096); 
    if(in_array($count, $lines_num)) { 
        //do want you want with this line 
        echo "$line<br>"; 
    } 
    $count++; 
} 
fclose($fp);

don_pingu · 09-15-2004, 11:00 AM

I assume you want to know on which lines the errors occured?

Take a look at this snippet

Code:

$line = "blabla blabla:didimentionblah.java:134:failure blah";

$matches = array();

if ( preg_match ( "/:([0-9]+):/", $line, $matches ) ) {
	echo "Line number: " . $matches[1] . "\n"; // Line number found
} else {
	echo "No line number found\n"; // No line number found
}

This will output:

Line number: 134

You can use this in a loop for every line there is.

The preg_match simply looks for any set of numerical characters placed between two semicolons (:).

antony_csf · 09-15-2004, 08:08 PM

thx~~! all of you!!