Downloading text and manipulating with php

[solex]

Hello all programmers.

I would like any help to do the following:

1. dowload a txt file from a users computer by a web browser interface.

2. Put all the contence into a varible.

3. Split it up into lines into an array (i know that this can be done by explode() but im not sure how i use it with line breaks)

4. Check each line in turn for if the first charictor is a #

5. if not then split the var up by tabs

phew thats it. I dont kneed all the code, just examples of the functions.

Thanx
solex

 

[sleipnir214]

1. See the PHP manual section titled "Handling file uploads".

2 & 3. See the PHP online manual entry for the function file()

4. For this, I'd use preg_match()

5. I'd use explode() for this.



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[solex]

5. how do i express a tab?

solex

 

[sleipnir214]

http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.double

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[solex]

im a bit confused about preg_match()

if i had the line in $lines[21] what would the function be like to look for #?

thanx in advance
solex

 

[sleipnir214]

It would use the regular expression '/^#/'. The rest of it's right there in the manual.



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[sleipnir214]

Now that I think about it, preg_match() is not the best function to use. Looking for so trivial a pattern is proabably not worth the resource overhead of running the regular expression engine.

If you only need to examine the leftmost character of a string, then comparing $lines[21]{0} to '#' will work. The "curly brace" notation is documented in the online manual entry for substr()



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