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<!DOCTYPE html>
<html>
<body>
<h2>Open and read a file</h2>
<?php
$myfile = fopen("webdictionary.txt", "r") or die("Unable to open file!");
#echo fread($myfile,filesize("webdictionary.txt"));
echo "First 10 bytes: "; echo fread($myfile,10); // Only the first 10 bytes.
echo "<br>Next 10 bytes: "; echo fread($myfile,10);
echo "<br>The rest: "; echo fread($myfile,filesize("webdictionary.txt"));
echo "<br>Try to read more when the entiref ile has been read: "; echo fread($myfile,10);
fclose($myfile);
?>
<h2>Write to a file</h2>
<?php
/**/
$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
$txt = "John Doe\n";
fwrite($myfile, $txt);
$txt = "Jane Doe\n";
fwrite($myfile, $txt);
fwrite($myfile, 'Jim martinson\n');
fwrite($myfile, "Jim martinson\n");
fclose($myfile);
/**/
?>
<h2>Rewrite the file</h2>
<?php
/**/
$myfile = fopen("newfile.txt", "w") or die("Unable to open file!");
$txt = "Mickey Mouse\n";
fwrite($myfile, $txt);
$txt = "Minnie Mouse\n";
fwrite($myfile, $txt);
fclose($myfile);
/**/
?>
<h2>Add more to the file</h2>
<?php
$myfile = fopen("newfile.txt", "a") or die("Unable to open file!");
$txt = "Goofy\n";
fwrite($myfile, $txt);
fclose($myfile);
?>
<h2>Read a file and play with the contents</h2>
<?php
$myfile = fopen("newfile.txt", "r") or die("Unable to open file!");
$contents = fread($myfile,filesize("newfile.txt"));
fclose($myfile);
?>
<pre><?=var_dump($contents)?></pre>
<h2>File line by line</h2>
<?php
$lines = explode("\n",$contents);
for ($i=0; $i<count($lines); $i++) {
$thisLine = $lines[$i];
echo $thisLine."<br>";
}
foreach ($lines as $thisLine) {
$newLine = str_replace("Mouse","Moose",$thisLine);
echo $newLine."<br>";
}
?>
</body>
</html>