[SOLVED] generate random file

[Tredan]

I need to generate a file named randomly with 9 characters for example 123456789.reg except the numbers should be random.

I tried this but i geuss i dont understand rand() well enough.

<?php
  
$1 = (rand()%9);
$2 = (rand()%9);
$3 = (rand()%9);
$4 = (rand()%9);
$5 = (rand()%9);  
$6 = (rand()%9);
$7 = (rand()%9);
$8 = (rand()%9);
$9 = (rand()%9);
$myFile = "regcodes/" . $1 . $2 . $3 . $4 . $5 . $6 . $7 . $8 . $9 . ".reg"
$fh = fopen($myFile, 'w');
fwrite($fh, "1");
fclose($fh);
?>

[chigley]

<?php

$rand = rand (111111111, 999999999);

$myFile = "regcodes/{$rand}.reg";
$fh = fopen($myFile, 'w');
fwrite($fh, "1");
fclose($fh);

?>

[Tredan]

<?php

$rand = rand (111111111, 999999999);

$myFile = "regcodes/{$rand}.reg";
$fh = fopen($myFile, 'w');
fwrite($fh, "1");
fclose($fh);

?>

Thank you.

[Wildbug]

Does it need to be that format?  If not, check out tempnam()

 

Otherwise, there's this:

$myFile = sprintf('regcodes%09d.reg',mt_rand(0,999999999));

[Psycho]

That sprintf statemetn is the same as I was posting, but it needs a forward splash between the directory name and file name.

[Tredan]

ok how would i have it so i could goto the gen.php file and enter say this gen.php?files=10 and it would create 10 files? with that code that chigley posted

 

i know this much

$get=$_GET["files"];

[chigley]

<?php

for ($i = 1; $i <= $_GET["files"]; $i++) {
$rand = rand (111111111, 999999999);
$myFile = "regcodes/{$rand}.reg";
$fh = fopen($myFile, 'w');
fwrite($fh, "1");
fclose($fh);
echo "Created file: {$myFile}<br />\n";
}

?>

[Tredan]

<?php

for ($i = 1; $i <= $_GET["files"]; $i++) {
$rand = rand (111111111, 999999999);
$myFile = "regcodes/{$rand}.reg";
$fh = fopen($myFile, 'w');
fwrite($fh, "1");
fclose($fh);
echo "Created file: {$myFile}<br />\n";
}

?>

cool thank you very much

[Wildbug]

for() loop.

 

// Generate N empty files

$num_of_files = abs(intval($_GET['files']));

if ($num_of_files) {
$count = 0;
while ($count < $num_of_files) {
	$filename = sprintf('regcodes/%09d.reg',mt_rand(0,999999999));
	if (file_exists($filename)) continue;
	fclose(fopen($filename,'w'));
	$count++;
}
}