I want to know how to search for a string in a folder and display the line in php. I already have a snipset but it dont search in a folder but in ONE file i have tested by replacing /something/sisi.txt by /somthing/* and /something/*.txt .
The snipset:
$searchthis = "jean";
$matches = array();
$handle = #fopen("./something/sisi.txt", "r");
if ($handle)
{
while (!feof($handle))
{
$buffer = fgets($handle);
if(strpos($buffer, $searchthis) !== FALSE)
$matches[] = $buffer;
}
fclose($handle);
}
print_r($matches);
I tested scandir using PHP version 7.4 and it gave expected results.
The reason why I started the index of $i at 2 is because the first two indices refer to "." and ".." which wasn't necessary for the test.
edit: 11/7/2022 -> Additional optional Echo statements have been added to make the separation between files more clear.
The printr from the question code
More info on scandir is here:
https://www.php.net/manual/en/function.scandir.php
<?php
$dir = './something';
$files1 = scandir($dir);
$files2 = scandir($dir, 1);
//echo ("<p>Below will be the directory information...</p>");
$L = sizeof($files1);
//print_r($files1);
$results = array();
for($i = 2; $i < $L; $i++) {
//echo "<br>The value of i is: $i";
//echo "<br>The value of files1 at i is:".$files1[$i];
scanFile($files1[$i]);
}
function scanFile($filename) {
//echo("<p>Scanning the file: $filename</p>");
$searchthis = "jean";
$matches = array();
$handle = #fopen("./something/$filename", "r");
if ($handle)
{
while (!feof($handle))
{
$buffer = fgets($handle);
if(strpos($buffer, $searchthis) !== FALSE)
$matches[] = $buffer;
}
fclose($handle);
}
for ($i = 0; $i < count($matches); $i++) {
echo "$matches[$i] <br>";
}
}
?>
Related
$my_content = "This is the first line\n
This is the second line\n
This is the third line\n";
$my_filename = "save.txt";
function file_writer(string $file_to_write, string $content_to_write){
$file = fopen($file_to_write, "w") or die("Unable to open file");
file_put_contents($file_to_write, $content_to_write);
fclose($file);
}
file_writer($my_filename, $my_content);
function file_reader(string $file_to_read, int $num_lines) {
$file = fopen($file_to_read, "r");
while(! feof($file))
{
$line = fgets($file);
echo $line;
}
}
**file_reader($my_filename, 3);**
Try this:
function file_reader(string $file_to_read, int $num_lines) {
$file = fopen($file_to_read, "r");
$c = 0;
while(! feof($file) && $c != $num_lines)
{
$c = $c+1;
$line = fgets($file);
echo $line;
}
}
Your other problem is that you have newlines after newlines.
$my_content = "This is the first line\nThis is the second line\nThis is the third line\n";
function file_reader(string $file_to_read, int $num_lines) {
$file = fopen($file_to_read, "r");
$currLineNo = 1;
while(!feof($file) && (currLineNo < $num_lines))
{
$line = fgets($file);
echo $line;
$currLineNo += 1;
}
}
Havent tried the code myself. This is roughly way you can stop the loop at arbitrary line number.
I'm trying to post 3 arrays using foreach and for some reason the break at the end isn't working and it outputs the whole list (40+) on to the page.
$file = fopen('names.csv', 'r');
while (($line = fgetcsv($file)) !== FALSE) {
//$line is an array of the csv elements
shuffle($line);
$i = 0;
foreach ($line as $number) {
{
if($i==3){ break; } else {
$rtime = mt_rand(1, 7);
echo $number; }
$i++;
}
}
}
fclose($file);
This is kind of how it looks: take.ms/cLgIh, instead it should only show 3 of these usernames.
<?php
$i = 0;
//I have opened my contact.csv :P
$file = fopen('contact.csv', 'r');
while (($line = fgetcsv($file)) !== FALSE) {
//$line is an array of the csv elements
shuffle($line);
foreach ($line as $number) {
{
if($i==3){ exit(); } else {
$rtime = mt_rand(1, 7);
echo "<br/> i = ".$i.$number.", "; }
}
$i++;
}
}
fclose($file);
?>
I have downloade first sample CSV from here:-http://www.sample-videos.com/download-sample-csv.php
And this code works for me:-
<?php
$file = fopen('SampleCSVFile_2kb.csv', 'r');
while (($line = fgetcsv($file)) !== FALSE) {
//$line is an array of the csv elements
shuffle($line);
$i = 0;
foreach ($line as $number) {
if($i==3){
exit;
} else {
$rtime = mt_rand(1, 7);
echo $number.'<br/>';
echo $i.'<br/>'; // you can remove this line
}
$i++;
}
}
fclose($file);
?>
Output on each page refresh:-
http://prntscr.com/cln2ju
http://prntscr.com/cln2nf
Note:- if still not work then check your CSV file. May be it is corrupted.
Conclusion:- And after all discussion it comes to an end that your CSV file is corrupted. But yes code improvement is needed too
You need to increment $i otherwise it's value will always be 0
$i = 0;
foreach ($line as $number) {
$rtime = mt_rand(1, 7);
echo "$number";
if($i==3) break;
$i++;
}
Also you need to check if your while statement is closing
$file = fopen('names.csv', 'r');
while (($line = fgetcsv($file)) !== FALSE) {
//$line is an array of the csv elements
shuffle($line);
$i = 0;
foreach ($line as $number) {
$rtime = mt_rand(1, 7);
echo $number;
if($i==3) break;
$i++;
}
} //check for this
As I can see in your code example it is missing the closing brace
Also, remove the double quotes from your $number, it's not necessary.
echo $number
You have a mistake is that the break are in the if($i==3) and you declared $i =0, but never increment this. So $i never arrive at 3.
I have a simple CSV-file which looks like this:
Value:
AAA
Value:
BBB
Value:
AAA
I want to count the number of times a certain value shows up (e.g. AAA).
To start, I want to get the lines which read "Value:" and just echo the following line "line[$i+1] which would be the corresponding value.
Here's the code:
<?php
$file_handle = fopen("rowa.csv", "r");
$i = 0;
while (!feof($file_handle) ) {
$line_of_text = fgetcsv($file_handle, 1024);
$line[$i] = $line_of_text[0];
if($line[$i] == "Value:"){
echo $line[$i+1]."<br />";
}
$i++;
}
fclose($file_handle);
?>
The outcome should look like this:
AAA
BBB
AAA
Unfortunately, this doesn't work..It just gives me "<*br /">s
If you are printing on command line or a file, you need to use \n instead of <br/>. That only works if your output is HTML. Also every time you want to move two lines. the logic should look like this:
if($line[$i] == "Value:"){
echo $line[$i+1]."\n"; // add a new line
}
$i+=2; // you want to move two lines
This doesn't look like a normal everyday CSV file, but here's an example that should work.
$fh = fopen('rowa.csv', 'r');
$OUT = array();
$C = 0;
while( ! feof($fh) ) {
// read 1 line, trim new line characters.
$line = trim(fgets($fh, 1024));
// skip empty lines
if ( empty($line) ) continue;
// if it's a value line we increase the counter & skip to next line
if( $line === 'Value:' ) {
$C++;
continue;
}
// append contents to array using the counter as an index
$OUT[$C] = $line;
}
fclose($fh);
var_dump($OUT);
This is not a CSV file. The file() command will load the lines of a file into an array. The for loop prints every second line.
$lines = file("thefile.txt");
for ($i = 1; $i < count($lines); $i = $i + 2) {
echo $lines[$i] . "<br/>" . PHP_EOL;
}
As PHP.net example provides, you can use this modified code:
<?php
$count = 0;
if (($handle = fopen("test.csv", "r")) !== FALSE)
{
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
{
$num = count($data);
for ($c=0; $c < $num; $c++)
{
if (!strcmp($data[$c], 'Value:')) continue;
if (!strcmp($data[$c], 'AAA')) $count++;
echo $data[$c] . "<br />\n";
}
}
fclose($handle);
}
?>
UPDATE
Try this new code, we use the value as array key and increment the count for that "key".
<?php
$counts = array();
if (($handle = fopen("test.csv", "r")) !== FALSE)
{
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE)
{
$num = count($data);
for ($c=0; $c < $num; $c++)
{
if (strcmp($data[$c], 'Value:'))
{
if (!isset($counts[$data[$c]]))
{
$counts[$data[$c]] = 0;
}
$counts[$data[$c]]++;
}
else
{
// Do something
}
}
}
fclose($handle);
}
var_dump($counts);
?>
You can print the array like this:
foreach ($counts as $key => $count)
{
printf('%s: %d<br/>' . "\n", $key, $count);
}
I'm new at PHP so I'm need help to build this script.
I have a file.txt file with following lines:
aaaa 1234
bbba 1234
aaaa 1236
cccc 1234
aaaa 1238
dddd 1234
I want to find the line with string "aaaa" and print:
String "aaaa" found 3 times at lines: 1, 3, 5.
And better it can print these lines.
I tried this code:
<?
function find_line_number_by_string($filename, $search, $case_sensitive=false ) {
$line_number = '';
if ($file_handler = fopen($filename, "r")) {
$i = 0;
while ($line = fgets($file_handler)) {
$i++;
//case sensitive is false by default
if($case_sensitive == false) {
$search = strtolower($search); //convert file and search string
$line = strtolower($line); //to lowercase
}
//find the string and store it in an array
if(strpos($line, $search) !== false){
$line_number .= $i.",";
}
}
fclose($file_handler);
}else{
return "File not exists, Please check the file path or filename";
}
//if no match found
if(count($line_number)){
return substr($line_number, 0, -1);
}else{
return "No match found";
}
}
$output = find_line_number_by_string('file.txt', 'aaaa');
print "String(s) found in ".$output;
?>
But I dont know how to count total of strings found (3) and print each found line.
Thank in advance.
There are lots of ways to do this that produce the same final result but differ in the specifics.
Assuming that your input is not large enough that you are concerned about loading it in memory all at once, one of the most convenient approaches is to use file to read the file's contents into an array of lines, then preg_grep to filter the array and only keep the matching lines. The resulting array's keys will be line numbers and the values will be whole lines that matched, perfectly fitting your requirements.
Example:
$lines = file('file.txt');
$matches = preg_grep('/aaaa/', $lines);
echo count($matches)." matches found.\n";
foreach ($matches as $line => $contents) {
echo "Line ".($line + 1).": ".$contents."\n";
}
$str = "aaaa";
$handle = fopen("your_file.txt", "r");
if ($handle) {
echo "String '".$str."' found at lines : ";
$count = 0;
$arr_lines = array();
while (($line = fgets($handle)) !== false) {
$count+=1;
if (strpos($line, $str) !== false) {
$arr_lines[] = $count;
}
}
echo implode(", ", $arr_lines).".";
}
UPDATE 2 :
$file = "your_file.txt";
$str = "aaaa;";
$arr = count_line_no($file, $str);
if(count($arr)>0)
{
echo "String '".$str."' found at lines : ".implode(", ", $arr).".";;
}
else
{
echo "String '".$str."' not found in file ";
}
function count_line_no($file, $str)
{
$arr_lines = array();
$handle = fopen("your_file.txt", "r");
if ($handle) {
$count = 0;
$arr_lines = array();
while (($line = fgets($handle)) !== false) {
$count+=1;
if (strpos($line, $str) !== false) {
$arr_lines[] = $count;
}
}
}
return $arr_lines;
}
**Try it for solve your problam **
if(file_exists("file.txt")) // check file is exists
{
$f = fopen("file.txt", "r");
// Read line by line until end of file
$row_count = 0;
while(!feof($f))
{
$row_count += 1;
$row_data = fgets($f);
$findme = 'aaaa';
$pos = strpos($row_data, $findme);
if ($pos !== false)
{
echo "The string '$findme' was found in the string '$row_data'";
echo "<br> and line number is".$row_data;
}
else
{
echo "The string '$findme' was not found ";
}
}
fclose($f);
}
I'm guessing it's fgets, but I can't find the specific syntax. I'm trying to read out (in a string I'm thinking is easier) the last line added to a log file.
The simplest naive solution is simply:
$file = "/path/to/file";
$data = file($file);
$line = $data[count($data)-1];
Though, this WILL load the whole file into memory. Possibly a problem (or not). A better solution is this:
$file = escapeshellarg($file); // for the security concious (should be everyone!)
$line = `tail -n 1 $file`;
This looks like it is what you are looking for:
tekkie.flashbit.net: Tail functionality in PHP
It implements a function that uses fseek() with a negative index to roll up the file from the end. You can define how many lines you want to be returned.
The code also is available as a Gist on GitHub:
// full path to text file
define("TEXT_FILE", "/home/www/default-error.log");
// number of lines to read from the end of file
define("LINES_COUNT", 10);
function read_file($file, $lines) {
//global $fsize;
$handle = fopen($file, "r");
$linecounter = $lines;
$pos = -2;
$beginning = false;
$text = array();
while ($linecounter > 0) {
$t = " ";
while ($t != "\n") {
if(fseek($handle, $pos, SEEK_END) == -1) {
$beginning = true;
break;
}
$t = fgetc($handle);
$pos --;
}
$linecounter --;
if ($beginning) {
rewind($handle);
}
$text[$lines-$linecounter-1] = fgets($handle);
if ($beginning) break;
}
fclose ($handle);
return array_reverse($text);
}
$fsize = round(filesize(TEXT_FILE)/1024/1024,2);
echo "<strong>".TEXT_FILE."</strong>\n\n";
echo "File size is {$fsize} megabytes\n\n";
echo "Last ".LINES_COUNT." lines of the file:\n\n";
$lines = read_file(TEXT_FILE, LINES_COUNT);
foreach ($lines as $line) {
echo $line;
}
define('YOUR_EOL', "\n");
$fp = fopen('yourfile.txt', 'r');
$pos = -1; $line = ''; $c = '';
do {
$line = $c . $line;
fseek($fp, $pos--, SEEK_END);
$c = fgetc($fp);
} while ($c != YOUR_EOL);
echo $line;
fclose($fp);
This is better, since it does not load the complete file into memory...
Set YOUR_EOL to your correct line endings, if you use the same line endings as the default line endings of the OS where your script resides, you could use the constant PHP_EOL.
function seekLastLine($f) {
$pos = -2;
do {
fseek($f, $pos--, SEEK_END);
$ch = fgetc($f);
} while ($ch != "\n");
}
-2 because last char can be \n
You either have to read the file in line by line and save the last read line to get it.
Or if on unix/linux you might consider using the shell command tail
tail -n 1 filename
This one wont break for a 1 or 0 line file.
function readlastline($fileName)
{
$fp = #fopen($fileName, "r");
$begining = fseek($fp, 0);
$pos = -1;
$t = " ";
while ($t != "\n") {
fseek($fp, $pos, SEEK_END);
if(ftell($fp) == $begining){
break;
}
$t = fgetc($fp);
$pos = $pos - 1;
}
$t = fgets($fp);
fclose($fp);
return $t;
}
If you want to read a file line by line the file function reads the contents of a file, line by line and returns each line as an element of an array.
So you could do something simple like:
$lines = file('log.txt');
$lastLine = array_pop($lines);
...Why just read the last line?
function readLines($fp, $num) {
$line_count = 0; $line = ''; $pos = -1; $lines = array(); $c = '';
while($line_count < $num) {
$line = $c . $line;
fseek($fp, $pos--, SEEK_END);
$c = fgetc($fp);
if($c == "\n") { $line_count++; $lines[] = $line; $line = ''; $c = ''; }
}
return $lines;
}
$filename = "content.txt";
$fp = #fopen($filename, "r");
print_r(readLines($fp, 2));
fclose($fp);
#unique_stephen, your answer is flawed. PHP fseek returns 0 for success and -1 for failure. Storing the result in $begining (sic) and then later using it in a filter for ftell() isn't correct. If my reputation were higher I would have voted you down and left a comment. Here is a modified version of unique_stephen's function.
function readlastline($fileName)
{
$fp = #fopen($fileName, "r");
if (fseek($fp, 0) == -1)
exit('Cannot seek to beginning of the file');
$pos = -1;
$t = " ";
while ($t != "\n") {
if (fseek($fp, $pos, SEEK_END) == -1)
exit('Cannot seek to the end of the file');
if (ftell($fp) == 0) {
break;
}
$t = fgetc($fp);
$pos = $pos - 1;
}
$t = fgets($fp);
fclose($fp);
return $t;
}
NOTE: PHP's fseek cannot manage to seek to the end of files larger than PHP_MAX_INT which is 32bit signed even on 64bit binaries.
function readlastline($fileName)
{
$fp = #fopen($fileName, "r");
$begining = fseek($fp, 0);
$pos = -1;
$t = " ";
while ($t != "\n") {
fseek($fp, $pos, SEEK_END);
if(ftell($fp) == $begining){
break;
}
$t = fgetc($fp);
$pos = $pos - 1;
}
$t = fgets($fp);
fclose($fp);
return $t;
}