Im having a little problem.
I have a txt file that i can write users names.
Thats ok!
But im trying to search the txt file by user input ($_POST['username']).
I getting user do not exist all the time..
anyone that can give me some tips?
My txt file contains:
Admin
Sheldon
Penny
Here is the code:
$user = $_POST['username'];
function CreateAccount($user){
if($_POST['reg']){
$file = 'test.txt';
$data = $user ."\n";
fopen($file, 'a');
file_put_contents($file, $data, FILE_APPEND);
}
}
function userSearch($user){
if($_POST['read']){
$file = 'test.txt';
$searchUser = $user;
fopen($file, 'r');
$content = file_get_contents($file);
if(strpos($content, $user)){
echo "exist";
}else{
echo "nope..";
}
}
}
String positions with strpos start at 0 not 1. So if the position is 0 it will equate to false.
Simple fix for your if statement may help
if(strpos($content, $user) !== FALSE){
PHP strpos
This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.
t.txt:
AdminSheldonLeonard
t.php
<?php
$file = "t.txt";
$name = "Sheldon";
$string = file_get_contents($file);
$array = file($file, FILE_IGNORE_NEW_LINES);
if(in_array($name,$array)){
echo "found ";
}else{
echo "nope ";
}
if(strstr($string,$name)){
echo "found ";
}else{
echo "nope ";
}
?>
output:
found found
Related
I have a textfile ($file) that contains the path to other files. My goal is to read the content of those files and print it in a table. When reading the paths from $file, only the last line path works correctly.
<?php
$file = "log2.txt";
if(file_exists($file)) {
$handler = fopen($file,'r');
while(!feof($handler)) {
$lines = fgets($handler);
$wordarray = explode(' ', $lines);
#echo $wordarray[0]." ".$wordarray[1]." ".$wordarray[2];
if (strpos($lines, 'NOK') !== false) {
echo "<tr><td>".$wordarray[0]."</td></tr>";
if(file_exists($wordarray[2])){
$log = fopen($wordarray[2], 'r');
#echo "FILE EXISTS ".$log;
$logtext = fread($log,filesize($wordarray[2]));
echo "<tr><td>".$logtext."</td></tr>";
fclose($log);
} else {
echo "<tr><td>"."FILE ".$wordarray[2]." FAILED TO LOAD"."</td></tr>";
}
}
}
fclose($handler);
} else {
echo "FILE DOES NOT EXISTS";
}
?>
Here is an exemple of how log2.txt would look like:
POE NOK poelog.txt
LINK-ERRORS OK OK
LATENCIES NOK latencieslog.txt
VOLATILE NOK volatilelog.txt
I think that the problem could be about line endings or so, but cannot get the point.
You're right. The $wordarray[2] contains also new line character so before using it pass it through trim() function and store it in a variable ($filename in my case).
Updated inner if:
if (strpos($lines, 'NOK') !== false) {
echo "<tr><td>".$wordarray[0]."</td></tr>";
$filename = trim($wordarray[2]);
if (file_exists($filename)){
echo "FILE EXISTS ".$filename;
$log = fopen($filename, 'r');
$logtext = fread($log, filesize($filename));
echo "<tr><td>".$logtext."</td></tr>";
fclose($log);
}
else{
echo "<tr><td>"."FILE ".$filename." FAILED TO LOAD"."</td></tr>";
}
}
This short function works like a sharm:
function displayFileContent( $fileName )
{
$arrayWithFileNames = file ( $fileName );
echo "<table>";
foreach ( $arrayWithFileNames as $singleFileName )
{
# remove the trailing \n on Linux - windows has 2 character as EOL
$singleFileName = trim(preg_replace('/\s\s+/', ' ', $singleFileName));
$contentOfFile = file_get_contents( $singleFileName );
echo "<tr><td>{$contentOfFile}</td></tr>";
}
echo "</table>";
}
You use it like this:
displayFileContent ("path-to-your-file");
Remark: There is no check if the file does exist....
I have a little problem with this code I have here. This code searches in a txt file and returnes what it has found.
Now what I want to do is change the file path with a $_GET method
But when I put in a $_GET method inside the "" it just says alot of errors such as "Your path cannot be empty"
What does not work:
$handle = #fopen(."$_GET['filepath']"., "r");
How I want it
$handle = #fopen("I/want/this/$_get/method", "r");
Full code
<?php
function find_value($input) {
// $input is the word being supplied by the user
$handle = #fopen("/users/edwin/list.txt", "r");
if ($handle) {
while (!feof($handle)) {
$entry_array = explode(":",fgets($handle));
if ($entry_array[0] == $input) {
return $entry_array[1];
}
}
fclose($handle);
}
return NULL;
}
?>
Thanks :)
Check the way you're handling your quotes.
$handle = #fopen($_GET['filepath'], "r");
Since it's a variable, it does not have to be encapsulated at all, unlike a string.
I want to detect if a word in a text file exists, and then remove it.. so, this is my code:
<?php
$search = $id;
$lines = file("./user/".$_GET['own'].".txt");
// Store true when the text is found
$found = false;
foreach($lines as $line)
{
if(strpos($line, $search) !== false)
{
$found = true;
// open to read and modify
$file = "./user/".$_GET['own'].".txt";
$fh = fopen($file, 'r+');
$data = fread($fh, filesize($file));
$new_data = str_replace($id."\n", "", $data);
fclose($fh);
// Open to write
$fh = fopen($file, 'r+');
fwrite($fh, $new_data);
fclose($fh);
$status = "has been successfully deleted.";
}
}
// If the text was not found, show a message
if(!$found)
{
$status = "is not exist in your list.";
}
?>
I got this work hours before.. I did some changes to my script and somehow, it didnt work anymore.. can anyone see through the code and tell me what is wrong??
or can anybody give simpler way to do what I want?? my code is messed..
I want to detect if a word in a text file exists, and then remove it..
<?php
$search = $id;
$filename="./user/".$_GET['own'].".txt";
$contents = file_get_contents($filename);
$contents = str_replace($id."\n", "", $contents);
file_put_contents($filename,$contents);
?>
That is all that there is to it.
Edit:
To make this equivalent to your solution, one can use
<?php
$search = $id;
$filename="./user/".$_GET['own'].".txt";
$contents = file_get_contents($filename);
$contents = str_replace($id."\n", "", $contents,$count);
if($count>0)
{
file_put_contents($filename,$contents);
echo "found and removed";
}
else
{
echo "not found";
}
?>
I want the program to print the document contents line by line while not reaching neither the end of file or found the word hi
The problem is when it found the word hi, it prints nothing although it is at position 22. Why not print the previous words how to solve this issue.
My file contain "Php is a special case hi. You will use less memory using the iterative solution. Moreover, function calls in PHP are costly, so it's better to avoid function calls when you can." string.
Here is my code
<?php
$contents = file_get_contents('m.txt');
$search_keyword = 'hi';
// check if word is there
$file=fopen("m.txt","r+");
while(!feof($file)&&strpos($contents, $search_keyword) == FALSE)
{
echo fgets($file)."<br>";
}
?>
change this condition
while(!feof($file)&&strpos($contents, $search_keyword) == FALSE)
to
while(!feof($file)) {
if(strpos($contents, $search_keyword) === FALSE) {
echo fgets($file)."<br>";
} else
break;
}
}
You mean print the file line by line until the word 'hi' is found?
<?php
$search_keyword = 'hi';
$handle = #fopen("m.txt", "r");
if ( $handle )
{
// Read file one line at a time
while ( ($buffer = fgets($handle, 4096)) !== false )
{
echo $buffer . '<br />';
if ( preg_match('/'.$search_keyword.'/i', $subject) )
break;
}
fclose($handle);
}
?>
You can replace the preg_match to strpos if you like.
I'm trying to define an array with a list of file urls, and then have each file parsed and if a predefined string is found, for that string to be replaced. For some reason what I have isn't working, I'm not sure what's incorrect:
<?php
$htF = array('/home/folder/file.extension', '/home/folder/file.extension', '/home/folder/file.extension', '/home/folder/file.extension', '/home/folder/file.extension');
function update() {
global $htF;
$handle = fopen($htF, "r");
if ($handle) {
$previous_line = $content = '';
while (!feof($handle)) {
$current_line = fgets($handle);
if(stripos($previous_line,'PREDEFINED SENTENCE') !== FALSE)
{
$output = shell_exec('URL.COM');
if(preg_match('#([0-9]{1,3}\.){3}[0-9]{1,3}#',$output,$matches))
{
$content .= 'PREDEFINED SENTENCE '.$matches[0]."\n";
}
}else{
$content .= $current_line;
}
$previous_line = $current_line;
}
fclose($handle);
$tempFile = tempnam('/tmp','allow_');
$fp = fopen($tempFile, 'w');
fwrite($fp, $content);
fclose($fp);
rename($tempFile,$htF);
chown($htF,'admin');
chmod($htF,'0644');
}
}
array_walk($htF, 'update');
?>
Any help would be massively appreciated!
Do you have permissions to open the file?
Do you have permissions to write to /tmp ?
Do you have permissions to write to the destination file or folder?
Do you have permissions to chown?
Have you checked your regex? Try something like http://regexpal.com/ to see if it's valid.
Try adding error messages or throw Exceptions for all of the fail conditions for these.
there's this line:
if(stripos($previous_line,'PREDEFINED SENTENCE') !== FALSE)
and I think you just want a != in there. Yes?
You're using $htF within the update function as global, which means you're trying to fopen() an array.
$fh = fopen($htF, 'r');
is going to get parsed as
$fh = fopen('Array', 'r');
and return false, unless you happen to have a file named 'Array'.
You've also not specified any parameters for your function, so array_walk cannot pass in the array element it's dealing with at the time.