lines in file

maciek4

for ($i=1;$i<count($lines);$i+=2)  

{
   echo nl2br($lines[$i]) . "<br /><br />\n";
   for ($i=2;$i<count($lines);$i+=2)
   {
   echo nl2br($lines[$i]) . "<br /><br />\n";
   echo '<a href="'.$_SERVER['REQUEST_URI'].'">Delete</a>' ;
   echo '<a href="commit.php?edit" name="edit">edit</a>'. "<br /><br />\n";
 }
 }

almost works.

I want it to look like this:

Product A
Description A
links

Product B
Description B
links

Product C
Descritpion C
links

etc

It gives me

Product A
Description A

links

Description B

links

Description C

links

etc

so I'm missig Product names from 3 line on.

devinemke

what excatly does $lines look like? is it each product, description and links on a separate line? what is the delimiter between them?

maciek4

everything in seperate lines
starting from line 2 because line 1 is input=
Product A
DescriptionA
Product B
Description B
Product C
Description C
etc

maciek4

exept for links, links are not in the file only Products and description

devinemke

$lines = file('lines.txt');
$count = count($lines);

foreach ($lines as $key => $value)
{
	if (1&$key)
	{
		$value = trim($value);
		echo $value . '<br>';
		$next = $key + 1;
		if ($next < $count) {echo $lines[$next] . '<br>';}
		echo '<a href="' . $_SERVER['REQUEST_URI'] . '">Delete</a> <a href="commit.php?edit" name="edit">edit</a>'. '<br /><br />';
	}
}

be advised that those links are not very useful since they are the same for each line. i suggest you pass some sort of unique identifier as a GET variable.

also, you should consider using a database instead of a flat file.

maciek4

devinemke wrote:
$lines = file('lines.txt');
$count = count($lines);

foreach ($lines as $key => $value)
{
	if (1&$key)
	{
		$value = trim($value);
		echo $value . '<br>';
		$next = $key + 1;
		if ($next < $count) {echo $lines[$next] . '<br>';}
		echo '<a href="' . $_SERVER['REQUEST_URI'] . '">Delete</a> <a href="commit.php?edit" name="edit">edit</a>'. '<br /><br />';
	}
}
be advised that those links are not very useful since they are the same for each line. i suggest you pass some sort of unique identifier as a GET variable.

also, you should consider using a database instead of a flat file.

It worked tanks. I will deal with other problems later on. I am very new to php and have to do problems one at a time. The problem was to display lines and links in between every 2 lines and I accomplished that with your help, now I will move on to another problem and try to solve it myself first until I run out of the ideas.

maciek4

I learned how to delete certain lines from the text

cutline('/files/promocje.txt',6); - will cut line #6 from the file

What I want to do is when you click on delete link I want certain lines to be deleted. How would I do that?

if ( isset (delete))
        {
cutline('/files/promocje.txt',$i);
}

something like that

devinemke

you can remove indexes from an array using [man]unset[/man] by refering to the array key. you can then write this all back to the file using [man]fopen[/man] and [man]fwrite[/man].

i cannot stress enough how much easier this would be if you used a database. what you are doing is essentially trying to mimic the functionality of a database using a plain text file. don't re-invent the wheel. it has already been invented. this is exactly what a database is designed to do and it will allow you to add/delete/sort/extract the data in a much more secure and efficient way. you said you are new to PHP, i urge to start learning this basics of databases now. you will be glad you did later.