PHP: Not able to add all values to the string [closed] - php

Question

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.
Closed 10 years ago.
I am trying to add unknown number of parameters to a string in PHP.
Here is code:
<?php
print "Get parameters";
$myFile = "wr.txt";
$fh = fopen ($myFile, 'w') or die ("can't open file");
$stringData = '';
//$st = '';
foreach ($_REQUEST as $k => $v) {
$date = date ('Y-m-d H:i:s');
$stringData = $k.":".$v."Date:".$date."\n";
fwrite ($fh, $stringData);
fwrite ($fh, $stringData);
fclose ($fh);
}
?>
But it is adding only last parameter value.
I also tried like
$stringData += $k.":".$v."Date:".$date."\n";
And put this:
fwrite($fh, $stringData);
fwrite($fh, $stringData);
fclose($fh);
Outside to the for loop but in that case it is writing 00 in the wr.txt. Please help me how can i write all the paramets in a line by date.
Thanks

Answer 1

In PHP . is used for concatenation + is not used for concatenation.
change this
$stringData +=$k.":".$v."Date:".$date."\n";
to
$stringData .= $k.":".$v."Date:".$date."\n";

Answer 2

Move close ($fh) away from the loop:
$myFile = "wr.txt";
$fh = fopen ($myFile, 'w') or die ("Can't open file");
$date = date ('Y-m-d H:i:s');
foreach ($_REQUEST as $k => $v)
fwrite ($fh, "$k: $v Date $date\n") or die ("Cannot write to file");
fclose ($fh);

Answer 3

use "." instead of "+", in php concatenation operator is "."

Answer 4

SEE THE LINES :
$stringData .=$k.":".$v."Date:".$date."\n";//** ADD CONCATENATION '.' BEFORE '='**
fwrite($fh, $stringData); //PUT THIS OUT SIDE THE LOOP
fwrite($fh, $stringData); //**REMOVE THIS **
fclose($fh); // **PUT HIS OUT SIDE THE FOREACH LOOP**
Try this :
<?php
print "Get parameters";
$myFile = "wr.txt";
$fh = fopen($myFile, 'w') or die("can't open file");
$stringData = '';
//$st = '';
foreach($_REQUEST as $k => $v) {
$date = date('Y-m-d H:i:s');
$stringData .=$k.":".$v."Date:".$date."\n";//** ADD CONCATENATION '.' BEFORE '='**
//fwrite($fh, $stringData); PUT THIS OUT SIDE THE LOOP
///fwrite($fh, $stringData); //**REMOVE THIS **
//fclose($fh); // **PUT HIS OUT SIDE THE FOREACH LOOP**
}
fwrite($fh, $stringData);
fclose($fh);
?>

Answer 5

I can only guess what you are trying to do. but try this:
<?php
print "Get parameters";
$myFile = "wr.txt";
$fh = fopen($myFile, 'w') or die("can't open file");
$stringData = '';
//$st = '';
foreach($_REQUEST as $k => $v) {
$date = date('Y-m-d H:i:s');
$stringData = $stringData . $k.":".$v."Date:".$date."\n";
}
fwrite($fh, $stringData);
fclose($fh);
?>
Hope that helps.