I want to check if a value is in array created from a text file (a list of email addresses).
Why neither of these solutions work? (foreach or in_array)
(I've tried printing the array $text and it's ok, no problem coming from file.txt, same thing with $search)
$myfile = fopen("file.txt", "r") or die("Unable to open file!");
while(!feof($myfile)) {
$text[] = fgets($myfile);
}
fclose($myfile);
$search=$_POST['something'];
foreach ($text as $val) {
if (strpos($search, $val) !== FALSE) {
echo "oK";
}
}
/* OR * /
if (in_array($search, $text)) {
echo "OK"; }
Personally, I would not put an entire file input input into an array as its a waste of memory you're already using reading from a file (specially if its large).
You can instead do your "like" condition inside of the loop. I would use str_contains for ease if your PHP version supports it. Build an array based on found results.
if (!isset($_POST['something'])) die('Missing search term');
# TODO: Handle this Exception better
$emails = fopen("file.txt", "r") or die("Unable to open file");
$similarEmails = [];
while(!feof($emails))
if (str_contains(($line = fgets($emails)), $_POST['something']))
$similarEmails[] = $line;
fclose($emails);
References:
str_contains
Related
I'm trying to make my PHP script open more than 1 text document and to read them.
My current script is as follows:
<?php
//$searchthis = "ignore this";
$matches = array();
$FileW = fopen('result.txt', 'w');
$handle = #fopen("textfile1.txt", "r");
ini_set('memory_limit', '-1');
if ($handle)
{
while (!feof($handle))
{
$buffer = fgets($handle);
if(stripos($buffer, $_POST["search"]) !== FALSE)
$matches[] = $buffer;
}
fwrite($FileW, print_r($matches, TRUE));
fclose($handle);
}
?>
I'm trying to fopen like a bunch of files, maybe like 8 of them or less.
How would I open, and read all these files?
Any help is GREATLY appreciated!
Program defensively, check the return's from functions to ensure you are not making incorrect assumptions about your code.
There is a function in PHP to read the file and buffer it:
enter link description here
I don't know why you would want to open a lot of files, it surely will use a lot of memory, anyway, you could use the file_get_contents function with a foreach:
$files = array("textfile1.txt", "textfile2.txt", "textfile3.txt");
$data = "";
foreach ($files as $file) {
$data .= #file_get_contents($file);
}
echo $data;
There is a function in php called file which reads entire file into an array.
<?php
// "file" function creates array with each line being 1 value to an array
$fileOne = file('fileOne.txt');
$fileTwo = file('fileTwo.txt');
// Print an array or do all array magic with $fileOne and $fileTwo
foreach($fileOne as $fo) {
echo $fo;
}
foreach($fileTwo as $ft) {
$echo $ft;
}
?>
Read more about : file function ion php
I am having some difficulty with reading info from a text file. Is it possible to use php and get one line at a time, and compare that line to a variable, one character at a time? Every time I add the character searching algorithm it messes up. or does the file reading only do full files/lines/character
ex:
$file=fopen("text/dialogue.txt","r") or exit("unable to open dialogue file");
if($file == true) {
echo "File is open";
fgets($file);
$c = "";
while(!feof($file)) {
$line = fgets($file)
while($temp = fgetc($line)) {
$c = $c . $temp;
//if statement and comparrison
}
}
} else {
echo "File not open";
}
fclose($file);
You may use php file function to read a file line by line
<?php
$lines = file("myfile.txt");
foreach($lines as $line){
## do whatever you like here
echo($line);
}
?>
Please check php manual
http://php.net/manual/en/function.file.php
I have a text file that stores lastname, first name, address, state, etc as a string with a | delimiter and each record on a separate line.
I have the part where I need to store each record on a new line and its working fine; however, now I need to be able to go back and update the name or address on a particular line and I can't get it to work.
This how to replace a particular line in a text file using php? helped me here but I am not quite there yet. This overwrites the whole file and I lose the records. Any help is appreciated!
After some edit seems to be working now. I am debugging to see if any errors.
$string= implode('|',$contact);
$reading = fopen('contacts.txt', 'r');
$writing = fopen('contacts.tmp', 'w');
$replaced = false;
while (!feof($reading)) {
$line = fgets($reading);
if(stripos($line, $lname) !== FALSE) {
if(stripos($line, $fname) !== FALSE) {
$line = "$string";
$replaced = true;
}
}
fwrite($writing, "$line");
//fputs($writing, $line);
}
fclose($reading); fclose($writing);
// might as well not overwrite the file if we didn't replace anything
if ($replaced)
{
rename('contacts.tmp', 'contacts.txt');
} else {
unlink('contacts.tmp');
}
It seems that you have a file in csv-format. PHP can handle this with fgetcsv() http://php.net/manual/de/function.fgetcsv.php
if (($handle = fopen("contacts.txt", "r")) !== FALSE) {
$data = fgetcsv($handle, 1000, '|')
/* manipulate $data array here */
}
fclose($handle);
So you get an array that you can manipulate. After this you can save the file with fputcsv http://www.php.net/manual/de/function.fputcsv.php
$fp = fopen('contacts.tmp', 'w');
foreach ($data as $fields) {
fputcsv($fp, $fields);
}
fclose($fp);
Well, after the comment by Asad, there is another simple answer. Just open the file in Append-mode http://de3.php.net/manual/en/function.fopen.php :
$writing = fopen('contacts.tmp', 'a');
I've looked for questions on this topic, but failed to get what I'm looking for. This is for C++, I need similar for PHP. This is for including php files, I just want to read a CSV file.
I have this:
if(file_exists("data.csv")){
echo "CSV file found";
$csv_data = file_get_contents("data.csv");
$lines = explode("\n", trim($csv_data));
$array = array();
foreach ($lines as $line){
$array[] = str_getcsv($line);
}else {echo "File not found";}
But I want to NOT specify the file name - i.e. generically load/read/open the file.
Is there any simple why of doing that? Doesn't make sense, but I was told to not have anything hard coded in my PHP script.
Thanks in advance.
use fgetcsv
if(file_exists("data.csv")){
echo "CSV file found";
$handle = fopen("data.csv", "r");
if(!$handle) die("Could not open file!");
while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
$num = count($data);
$row++;
for ($c=0; $c < $num; $c++) {
echo $data[$c] . "<br />\n";
}
}
fclose($handle);
}else {echo "File not found";}
If you may not have anything hard coded in your script, you need to put those hardcoded things into some sort of external config file. You will have to hardcode the name of that config file into your bootstrap or whatever comes first in your application. Once the config is loaded, make the configuration data available in the places where it is needed. Not hardcoding configuration data into your code will allow you to create more reusable components and code, e.g. CSV Reader that can read any CSV file instead of a CSV Reader that can only read that one particular CSV file hardcoded into it.
Example:
// config.php
<?php
return array(
'csvFile' => '/path/to/file.csv',
…
);
// bootstrap.php
<?php
$config = include '/path/to/config.php';
…
// someFile.php
<?php
include '/path/to/bootstrap.php';
$file = new SplFileObject($config['csvFile']);
$file->setFlags(SplFileObject::READ_CSV);
foreach ($file as $row) {
// Do something with values
}
Put your code into a function...
function open_file($file_name)
{
if (!file_exists($file_name))
{
return false;
}
$csv_data = file_get_contents($file_name);
$lines = explode("\n", trim($csv_data));
$array = array();
foreach ($lines as $line)
{
$array[] = str_getcsv($line);
}
return $array;
}
I have a php code that will read and parse csv files into a multiline array, what i need to do next is to take this array and let simplehtmldom fire off a crawler to return some company stocks info.
The php code for the CSV parser is
$arrCSV = array();
// Opening up the CSV file
if (($handle = fopen("NASDAQ.csv", "r")) !==FALSE) {
// Set the parent array key to 0
$key = 0;
// While there is data available loop through unlimited times (0) using separator (,)
while (($data = fgetcsv($handle, 0, ",")) !==FALSE) {
// Count the total keys in each row $data is the variable for each line of the array
$c = count($data);
//Populate the array
for ($x=0;$x<$c;$x++) {
$arrCSV[$key][$x] = $data[$x];
}
$key++;
} // end while
// Close the CSV file
fclose($handle);
} // end if
echo "<pre>";
echo print_r($arrCSV);
echo "</pre>";
This works great and parses the array line by line, $data being the variable for each line. What i need to do now is to get this to be read via simplehtmldom, which is where it breaks down, im looking at using this code or something very similar, im pretty inexperienced at this but guess i would be needing a foreach statement somewhere along the line.
This is the simplehtmldom code
$html = file_get_html($data);
$html->find('div[class="detailsDataContainerLt"]');
$tickerdetails = ("$es[0]");
$FileHandle2 = fopen($data, 'w') or die("can't open file");
fwrite($FileHandle2, $tickerdetails);
fclose($FileHandle2);
fclose($handle);
So my qyestion is how can i get them both working together, i jave checked out simplehtmldom manual page several times and find it a littlebit vague in this area, the simplehtmldom code above is what i use in another function but by direclty linking so i know that it works.
regards
Martin
Your loop could be reduced to (yes, it's the same):
while ($data = fgetcsv($handle, 0, ',')) {
$arrCSV[] = $data;
}
Using SimpleXML instead of SimpleDom (Since it's standard PHP):
foreach ($arrCSV as $row) {
$xml = simplexml_load_file($row[0]); // Change 0 to the index of the url
$result = $xml->xpath('//div[contains(concat(" ", #class, " "), " detailsDataContainerLt")]');
if ($result->length > 0) {
$file = fopen($row[1], '2'); // Change 1 to the filename you want to write to
if ($file) {
fwrite($file, (string) $result->item(0));
fclose($file);
}
}
}
that should do it if I understood correctly...