PhP using explode and replacing strings in a large file

Question

I'm very very new to PHP so any help will do :-)

I want to change -- to : in a large file. What have I done wrong?

$handle = fopen('april.log.txt', 'r'); while (!feof($handle)){ $line = fgets($handle, 1024); $to_replace =array('--',':'); $clean = str_replace($to_replace,':',$line); echo $line; }

Why do you need to replace already-existing : characters with :? — BoltClock
– BoltClock, Commented Nov 5, 2011 at 17:26

codaddict · Accepted Answer · 2011-11-05 17:28:37Z

You are printing the old string:

echo $line;

You need to print the modified string:

echo $clean;

And you can change your $to_replace to:

$to_replace = '--';

Benjamin Crouzier · Accepted Answer · 2011-11-05 17:33:13Z

Try this:

<?php $handle = fopen('yourfile.txt', 'r'); while (!feof($handle)){ $line = fgets($handle, 1024); $line = str_replace('--',':',$line); echo $line; }

2 things:

You don't need to have your search-replace in an array.
You assigned the result of str_replace in $clean instrad of $line

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