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copied!<p>I'm not entirely sure of your question - do you want to write data and not have it over-write the beginning of an existing file, or write new data to the start of an existing file, keeping the existing content after it?</p> <p><strong>To insert text without over-writing the beginning of the file</strong>, you'll have to open it for appending (<a href="http://ie.php.net/fopen" rel="noreferrer"><code>a+</code> rather than <code>r+</code></a>)</p> <pre><code>$file=fopen(date("Y-m-d").".txt","a+") or exit("Unable to open file!"); if ($_POST["lastname"] <> "") { fwrite($file,$_POST["lastname"]."\n"); } fclose($file); </code></pre> <p><strong>If you're trying to write to the start of the file</strong>, you'll have to read in the file contents (see <a href="http://www.google.ie/url?sa=t&source=web&ct=res&cd=1&url=http%3A%2F%2Fwww.php.net%2Ffile_get_contents&ei=39jTSKOWEoyk1wbQ-vC6Dg&usg=AFQjCNHwFDwvy4v0p90sNfmfSB_jg7gR7Q&sig2=KyOdq6fGxuj8701pDDdXqA" rel="noreferrer"><code>file_get_contents</code></a>) first, then write your new string followed by file contents to the output file.</p> <pre><code>$old_content = file_get_contents($file); fwrite($file, $new_content."\n".$old_content); </code></pre> <p>The above approach will work with small files, but you may run into memory limits trying to read a large file in using <code>file_get_conents</code>. In this case, consider using <a href="http://ie.php.net/rewind" rel="noreferrer"><code>rewind($file)</code></a>, which sets the file position indicator for handle to the beginning of the file stream. Note when using <code>rewind()</code>, not to open the file with the <code>a</code> (or <code>a+</code>) options, as:</p> <blockquote> <p>If you have opened the file in append ("a" or "a+") mode, any data you write to the file will always be appended, regardless of the file position. </p> </blockquote>

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