count entries

[smallcompany]

Hi,

I have a script that writes a variable $v1 into a flat txt file. First, it checks if the variable is presented. If it is, it skips the action, if not, it writes it into the txt file.
The script:

$lines = array_map('trim',file("/path/write.txt"));
$fp = fopen("/path/write.txt", "a");
if(in_array($v1,$lines))
{
fclose($fp);
} else {
fwrite($fp, "$v1\n");
fclose($fp);
}

The txt file could look like this:

variable1
variable3
variable7
etc

Now I would like to count each hit, so it looks like this:

variable1, 45
variable3, 78
variable7, 9
etc

where the numbers would represent how many times a certain variable has been noted.

Edit: deleted second code example that actually did not matter in this case.

Thanks

[LifeinAsia]

Any particular reason you're using a flat file instead of a database?

[Peter_S]

Do you absolutely need the text file to have this format ?

Otherwise here is a simple example (I didn't test it)

$list_var = @unserialize ( @file_get_contents ( $file_name ) ) ;

if ( $list_var === false ) 
{
 $list_var = array ( ) ;
}

if ( isset ( $list_var [ $v1 ] ) )
{
 $list_var [ $v1 ] ++ ;
}
else
{
 $list_var [ $v1 ] = 1 ;
}

file_put_contents ( $file_name , serialize ( $list_var ) , LOCK_EX ) ;

[smallcompany]

Thanks.

Would $file_name in this case be "/path/write.txt" ?

Any particular reason you're using a flat file instead of a database?

It's an old code I used to track some variables that had not many entries, so checking/purging a flat text file was just easy.
Now what I'm doing is some sort of testing where I would turn this writing part off, once the testing is finished.
Plus, less code for a txt file.

[smallcompany]

Ok, I got that working, and thank you as it seems it does what I wanted it for. It looks like this:

a:6:{s:29:"/page1.html";i:2;s:20:"/page3.html";i:1;s:0:"";i:1;s:27:"/page2.html";i:1;s:34:"/page4";i:1;s:29:"/page5";i:2;}

Now, I guess "i:2" means it got counted 2 times so far. But what would "a" and "s" stand for?

Also, how do I enter a line break after each entry, between "i" and "s" ?

Thank you

[Peter_S]

In my example , you can't modify the format, because it's PHP's own representation of an array. ( "a:6" means it's an array made of "6" rows. "s:29" means the following field is a string which has 29 characters ). That's why I asked if you needed a particular format in your text file.

if you really need a human readable file, you might try this (not tested) :

$content = @file_get_contents ( $file_name ) ;
$list_var = array ( ) ;

if ( $content !== false )
{
 $rows = explode ( "\n" , $content );
 foreach ( $rows as $row )
 {
 $fields = explode ( "," , $rows ) ;
 $field_name = trim ( $fields [ 0 ] ) ;
 if ( $field_name != '' )
 {
 $counter = trim ( isset ( $fields [ 1 ] ) ? $fields [ 1 ] : 0 ) ;
 $list_var [ $field_name ] = $counter ;
 }
 }
}

if ( isset ( $list_var [ $v1 ] ) )
{
 $list_var [ $v1 ] ++ ;
}
else
{
 $list_var [ $v1 ] = 1;
}

$content = '' ;

foreach ( $list_var as $field_name => $counter )
{
 $content .= $field_name . ',' . $counter . "\n" ;
}

file_put_contents ( $file_name , $content , LOCK_EX ) ;

[smallcompany]

Thanks.

This produces a warning:

explode() expects parameter 2 to be string, array given in /path/script.php on line 10

Line 10 is this:

$fields = explode ( "," , $rows ) ;

At the end, it does write the variable into the text file, but then keeps overwriting it with the new entry. Therefore, there's only one variable showing at any time.

Thanks

[Peter_S]

$fields = explode ( "," , $row ) ;

without the "s" at the end of "rows".

[smallcompany]

First testing shows positive results. I'll just wait to see more from natural traffic, but it looks right.

Thank you very much!