I have a code
$handle = fopen(getcwd() . "/emails.txt", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
SendEmails($line,$strSubject,$strMessage,$txtFormName,$txtFormEmail,$fname,$ftype,$tmp_path);
$line.delete; // here i need to delete each readed line
}
fclose($handle);
} else {
echo "error opening the file.";
}
How to delete each readed line while reading?
Try This
$handle = fopen(getcwd() . "/emails.txt", "r");
$readedlines="";
if ($handle) {
while (($line = fgets($handle)) !== false) {
SendEmails($line,$strSubject,$strMessage,$txtFormName,$txtFormEmail,$fname,$ftype,$tmp_path);
$readedlines=$readedlines.$line;
fclose($handle);
$newFileContent=str_replace($readedlines,"",file_get_contents($filename));
$handle=fopen($filename, "w");
fwrite($handle,$newFileContent);
fclose($handle);
} else {
echo "error opening the file.";
}
I mean just concate all readed line into one string and replace through the whole string of file content.
Hope that helps
// Get file contents
$contents = file_get_contents('/emails.txt');
// Explode to get contents in an array
$rows = explode("\n", $contents);
file_put_contents('/emails.txt', "");
// Loop through all rows in emails.txt
foreach ($rows as $row) {
// If sending the email fails, add row to $notSent
if (false === SendEmails($row, $strSubject, $strMessage, $txtFormName, $txtFormEmail, $fname, $ftype,$tmp_path)) {
$contents = file_get_contents('/emails.txt');
$contents .= $row."\n";
file_put_contents('/emails.txt', $contents);
}
}
Related
I have the following peoplelist.txt text file with 2 rows:
1,Hello,hello#me.com,Boss
2,Hello Again,hello2#me.com,Boss
My code to output this is:
$handle = fopen("peoplelist.txt", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
echo $line;
}
fclose($handle);
}
Is it possibly instead of outputting the entire line, I just output the data in the 2nd column (aka Hello & Hello Again)?
Since that's CSV data:
while (($line = fgetcsv($handle)) !== false) {
echo $line[1];
}
$handle = fopen("/temp/peoplelist.txt", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
$parts = explode(',',$line);
echo $parts[1] . PHP_EOL;
}
fclose($handle);
}
I'm creating PHP program which should find in *.txt file line that starts with word "tak" and skip that program from rewriting it to the next *.txt file. So what I want to achieve now is prevent it from writing, for example, 2 more lines after line that started with "tak" word. Here is my CODE:
<?php
$file2 = fopen("out.txt", "w") or die("Unable to open file!");
$handle = fopen("plik.txt", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
if (strpos($line, 'tak') === 0) {
echo 'found<br/>';
}
else {
fwrite($file2, $line);
}
}
fclose($handle);
echo 'OK';
}
else {
echo "can't read the file";
}
?>
I think using file, a for loop, and file_put_contents would work and be simpler.
$file2 = "out.txt";
//$file = file($file2) or die("Unable to open file!");
$file = array('asdf',
'asdf',
'asdf',
'tak',
'1',
'2',
'3',
'4');
file_put_contents($file2, ''); // truncate file;
for($i = 0; $i < count($file); $i++) {
$line = $file[$i];
if (strpos($line, 'tak') === 0) {
echo 'found<br/>';
$i = $i + 2;
} else {
// file_put_contents($file2, $line, FILE_APPEND | LOCK_EX);
echo $line;
}
echo 'ok';
}
Demo: https://eval.in/597694
Output (kinda messy but gets the point tak, 1, and 2 skipped):
asdfokasdfokasdfokfound<br/>ok3ok4ok
You can do it by keeping boolean and integer variable to count the number of occurrence. Like this,
<?php
$file2 = fopen("out.txt", "w") or die("Unable to open file!");
$handle = fopen("plik.txt", "r");
if ($handle) {
$stopWriteLines=false;
$max_line_skip=2;
// Taking above two variables for our logic.
while (($line = fgets($handle)) !== false) {
if($stopWriteLines) {
$max_line_skip--;
}
// Above condition check if we found tak in line then decrements the skip lines count.
if (strpos($line, 'tak') === 0) {
echo 'found<br/>';
$stopWriteLines=true; // Setting Boolean variable to skip writing lines.
}
else {
if(!$stopWriteLines) { // will write only if Boolean variable is set to true.
fwrite($file2, $line);
}
}
if($max_line_skip==0) {
$stopWriteLines=false;
}
// Above condition will make Boolean variable false after skipping 'n' lines.
}
fclose($handle);
echo 'OK';
}
else {
echo "can't read the file";
}
?>
Please check the explanations in code for better understanding of respected code sections.
I have some text file size(500mb). I need a script that search given string from this text file as first as possible. i was trying
$query="demo";
$FileName = "search.txt";
$fh = fopen($FileName, 'r') or die("Can't open file");
$data = fread($fh, filesize($FileName));
$items = explode(" ", $data);
$Pos = array_search ($query, $items);
if($Pos !== FALSE)
{
echo "Found";
}
else
{
echo "Not Found";
}
Is there any script or algorithm to search more faster?
Thanks in advance.
Do not read the entire file.
Read line by line and check if the $query is contained withing the line (assuming the result can't be in multiple lines):
$query = 'demo';
$fileName = 'search.txt';
$file = fopen($fileName, 'r') or die("Can't open file");
while ($line = fgets($file)) {
if (strpos($query, $line) !== false ) {
$found = true;
break;
}
}
fclose($fh);
I am trying to check the existence of directories list on file as below:
<?php
$file = "L:/tmp/file1.txt";
$f = fopen($file, "r");
while ($line = fgets($f,500)) {
$line = str_replace("\\","/",$line);
$found=is_dir($strTest);
if($found) {
echo "<br>the dir $strTest was found";
} else {
echo "<br>the dir $strTest was not found";
}
}
?>
the File I read from like this:
L:\tmp\Folder1
L:\tmp\Folder2
L:\tmp\Folder3
L:\tmp\Folder4
The result is All Folders Not found except the last one .... but I am sure that all the list are exist
The problem is that in first folder names
L:\tmp\Folder1
L:\tmp\Folder2
L:\tmp\Folder3
when you use fgets it takes \n as well. So in these names you have next line symbol. In the last one L:\tmp\Folder4 there is no \n, so thats why the only found is the last one.
<?php
$file = "file.txt";
$f = fopen($file, "r");
while ($line = fgets($f, 500)) {
$line = str_replace("\\", "/", $line);
$line = preg_replace("/
/", "", $line);
if (is_dir($line)) {
echo "<br />the dir $line was found";
} else {
echo "<br />the dir $line was not found";
}
}
?>
try with this code (replace your parameters)
$handle = opendir('/path/to/directory')
if ($handle) {
while (false !== ($file = readdir($handle))) {
print "$file<br />\n";
}
closedir($handle);
}
I have .csv file with 4 columns. What's the easiest way to remove a line identical with the id of the first column? Here's where I got stuck:
if($_GET['id']) {
$id = $_GET['id'];
$file_handle = fopen("testimonials.csv", "rw");
while (!feof($file_handle) ) {
$line_of_text = fgetcsv($file_handle, 1024);
if ($id == $line_of_text[0]) {
// remove row
}
}
fclose($file_handle);
}
Unfortunately, databases were not a choice.
$table = fopen('table.csv','r');
$temp_table = fopen('table_temp.csv','w');
$id = 'something' // the name of the column you're looking for
while (($data = fgetcsv($table, 1000)) !== FALSE){
if(reset($data) == $id){ // this is if you need the first column in a row
continue;
}
fputcsv($temp_table,$data);
}
fclose($table);
fclose($temp_table);
rename('table_temp.csv','table.csv');
I recently did a similar thing in for a newsletter unsubscription, heres my code:
$signupsFile = 'newsletters/signups.csv';
$signupsTempFile = 'newsletters/signups_temp.csv';
$GLOBALS["signupsFile"] = $signupsFile;
$GLOBALS["signupsTempFile"] = $signupsTempFile;
function removeEmail($email){
$removed = false;
$fptemp = fopen($GLOBALS["signupsTempFile"], "a+");
if (($handle = fopen($GLOBALS["signupsFile"], "r")) !== FALSE) {
while (($data = fgetcsv($handle)) !== FALSE) {
if ($email != $data[0] ){
$list = array($data);
fputcsv($fptemp, $list);
$removed = true;
}
}
fclose($handle);
fclose($fptemp);
unlink($GLOBALS["signupsFile"]);
rename($GLOBALS["signupsTempFile"], $GLOBALS["signupsFile"]);
return $removed;
}
this uses the temp file method of writing out the csv line by line to avoid memory errors. Then once the new file has been created, it deletes the original and renames the temp file.
You can modify this code so that it looks for an ID instead of an email address eg:
$id = $_GET['id'];
$fptemp = fopen('testimonials-temp.csv', "a+");
if (($handle = fopen('testimonials.csv', "r")) !== FALSE) {
while (($id= fgetcsv($handle)) !== FALSE) {
if ($id != $data[0] ){
$list = array($data);
fputcsv($fptemp, $list);
}
}
fclose($handle);
fclose($fptemp);
unlink('testimonials.csv');
rename('testimonials-temp.csv','testimonials.csv');
$id = $_GET['id'];
if($id) {
$file_handle = fopen("testimonials.csv", "w+");
$myCsv = array();
while (!feof($file_handle) ) {
$line_of_text = fgetcsv($file_handle, 1024);
if ($id != $line_of_text[0]) {
fputcsv($file_handle, $line_of_text);
}
}
fclose($file_handle);
}
You can do:
$new = '';
while (!feof($file_handle))
{
$line_of_text = fgetcsv($file_handle, 1024);
if ($id != $line_of_text[0])
{
$new .= implode(',',$line_of_text) . PHP_EOL;
}
}
basically you running threw each line and check if the id does NOT match the id sent in the get parameter, if it does not then it writes the line to the new container / variable.
And then rewrite the $new value to the file, this should work ok:
How big is the file
Do you have a CSV Header on line 0?
I have found a solution, that does not need to copy the file.
$file = 'testimonials.csv'
// open two handles on the same file
$input = fopen($file ,'r'); // read mode
$output = fopen($file, 'c'); // write mode
if($input !== FALSE && $output !== FALSE) { // check for error
while (($data = fgetcsv($input, $CSVLIMIT, $sep)) !== FALSE) {
if(reset(data) == $id) {
continue;
}
fputcsv($output, $data, $sep);
}
// close read handle
fclose($input);
// shorten file to remove overhead created by this procedure
ftruncate($output, ftell($output));
fclose($output);
}
Note: only one of those fopen commands could fail, leaking the handle for the second one. It would be good, to check both handles independetly and close them on a error.