In my directory I have a list.csv of the form:
RP2015, active
Hope, paused
Process99, active
I'm writing a php script to allow a web user to switch the different lines from 'active' to 'paused' and back. Unfortunately I've hit a snag. My current code is live at: http://whitewaterwriters.com/Driver/index.php
and it looks like this
<HTML>
<Body>
<?
if ($_POST != null) {
$target = $_POST ['sprint'];
echo "<br>Target was:".$target;
$replacement=str_replace('active','paused',$target);
if (strpos($target,'paused') !== false) {
$replacement=str_replace('paused','active',$target);
}
echo "<br>Replacement was:".$replacement."<br>";
$filename = "list.csv";
$contents = file_get_contents($filename);
print "<br>contents was:".$contents;
$new_contents = str_replace($target, $replacement, $contents);
print "<br>contents became:".$new_contents;
file_put_contents($filename, $new_contents);
}
?>
<br><br>
<?php
$row = 1;
if (($handle = fopen("list.csv", "r")) !== FALSE) {
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
echo '<form action="index.php" method=post>';
echo $data[0] . $data[1];
echo '<button type="submit" value="'. $data[0].", ".$data[1].'" name="sprint">Pause</button></form><br>';
}
fclose($handle);
}
?>
</body>
</html>
For some reason the replace is not firing. The event is captured, the correct target and replace strings are (I think) generated, but the replace is NOT coming out. The output I get is:
Target was:RP2015, active
Replacement was:RP2015, paused
contents was:RP2015, active
contents became:RP2015, active
RP2015 active
Can anyone tell me what's going on?
EDIT:
The current list.csv is exactly:
RP2015, active
`
The thing I had forgotten is that html squashes consecutive spaces together which is why the $target looked like it was fine. Actually:
$data[0].", ".$data[1]
only needed to be
$data[0].",".$data[1]
Because there was a space left over from the csv parsing. I'll make the code a bit more robust to that in future.
For the interested - this helper function I wrote helped me locate the error:
function toask($inStr){
$arr1 = str_split($inStr);
foreach ( $arr1 as $a){
print ord($a)." ";
}
}
It converts a string to a sequence of ascii codes do you can make sure, for example, that quote characters are the ones you think they are...
Try this:-
$fp = fopen($filename, "wb");
$handle = fopen($filename, "wb");
$replacement = str_replace("active", "paused", $fp);
$numbytes = fwrite($handle, $replacement);
fclose($handle);