I have a variable that I am trying to examine its content that is called asynchronously, so I cannot do a normal var_dump($variable) for example. I have been trying to write the variable content to a file, but not having success. This is the function including the file write code. I'm not sure of the data type of the $dataobject. How can I determine its type and dump its content into the data.txt file?
public function insert_record($table, $dataobject) {
$dataobject = (array)$dataobject;
$columns = $this->get_columns($table);
$cleaned = array();
$fp = fopen('../../data.txt', 'w');
foreach ($dataobject as $field => $value) {
//fwrite($fp, print_r($field), print_r($value) );
// fwrite($fp, print($field), print($value) );
// fwrite($fp, var_export($value) );
}
fclose($fp);
}
fwrite($fp, var_export($value, true));
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 would like to be able to edit a config file for a server application using php. The config file is as follows:
include=sc_serv_public.conf
streamid_2=2
streampath_2=/relay
streamrelayurl_2=http://<full_url_of_relay_including_port>
;allowrelay=0
;allowpublicrelay=0
I would like to edit the line:
streamrelayurl_2=http://<full_url_of_relay_including_port>
and then save the file.
I am currently using:
$data = file_get_contents("sc_serv.conf"); //read the file
$convert = explode("\n", $data); //create array separate by new line
to open the file, but now I dont know how to edit it.
As an alternative, you could just use file() instead. This just loads it up into array form, no need to explode. Then after that, you just loop the elements, if the desired needle is found, overwrite it, the write the file again:
$data = file('sc_serv.conf', FILE_IGNORE_NEW_LINES); // load file into an array
$find = 'streamrelayurl_2='; // needle
$new_value = 'http://www.whateverurl.com'; // new value
foreach($data as &$line) {
if(strpos($line, 'streamrelayurl_2=') !== false) { // if found
$line = $find . $new_value; // overwrite
break; // stop, no need to go further
}
}
file_put_contents('sc_serv.conf', implode("\n", $data)); // compound into string again and write
You can use file() to read the file content to an array, then you can iterate trough the array with foreach() searching with the strstr() function the line that have your URL (in this case is in the var $id_change) and change the value. Then as you found what you needed, you end the foreach() with break. And make your string to save in the file with implode() and save the string to the config file with file_put_content().
See the code:
<?php
$new_url = 'http://www.google.com';
$id_change = 'streamrelayurl_2';
$file = "sc_serv.conf";
$data = file($file); //read the file
foreach($data as $key => $value) {
if(strstr($value, $id_change)) {
$info = $id_change . '=' . $new_url . "\n";
$data[$key] = $info;
break;
}
}
$data = implode("", $data);
file_put_contents($file, $data);
?>
Output:
include=sc_serv_public.conf
streamid_2=2
streampath_2=/relay
streamrelayurl_2=http://www.google.com
;allowrelay=0
;allowpublicrelay=0
I sense that I am almost there.
Here is a .txt file, which is about 60 Kbytes and full of German words. Every word is on a new line.
I want to iterate through it with this code:
<?php
$file = "GermanWords.txt";
$f = fopen($file,"r");
$parts = explode("\n", $f);
foreach ($parts as &$v)
{
echo $v;
}
?>
When I execute this code, I get: Resourceid#2
The word resource is not in the .txt, I do not know where it comes from.
How can I manage to show up all words in the txt?
No need for fopen just use file_get_contents:
$file = "GermanWords.txt";
$contents = file_get_contents($file);
$lines = explode("\n", $contents); // this is your array of words
foreach($lines as $word) {
echo $word;
}
fopen() just opens the file, it doesn't read it -- In your code, $f contains a file handle, not the file contents. This is where the word "Resource" comes from; it's PHP's internal name for the file handle.
One answer would be to replace fopen() with file_get_contents(). This opens and reads the file in one action. This would solve the problem, but if the file is big, you probably don't want to read the whole thing into memory in one go.
So I would suggest instead using SplFileObject(). The code would look like this:
<?php
$file = "GermanWords.txt";
$parts = new SplFileObject($file);
foreach ($parts as $line) {
echo $line;
}
?>
It only reads into memory one line at at time, so you don't have to worry about the size of the file.
Hope that helps.
See the PHP manual for more info: http://php.net/manual/en/splfileobject.construct.php
$f, the result of fopen is a resource, not the contents of the file. If you just want an array of the lines contained in the file, you can use file:
$parts = file('GermanWords.txt');
foreach($parts as $v){
echo $v;
}
Alternatively, if you want to stick with fopen you can use fread to read the content:
$f = fopen('GermanWords.txt', 'r');
// read the entire file into $contents
$contents = fread($f, filesize('GermanWords.txt'));
fclose($handle);
$parts = explode("\n", $contents);
The SplFileObject provides a way to do that :
$file = new SplFileObject("file.txt");
while (!$file->eof()) {
echo $file->fgets();
}
And if you prefer the foreach loop, you can create a generator function for that :
function lines($filename) {
$file = new SplFileObject($filename);
while (!$file->eof()) {
yield $file->fgets();
}
}
foreach (lines('German.txt') as $line) {
echo $line;
}
Reading the entire content of the file (with file_get_contents) before treating it can be memory consuming.
If you want to treat a file line by line, this class might help you.
It implements an Iterator (see phpdoc about it), that can be walked through in a foreach loop. Only the last line read is stored in memory.
class TxtFileIterator implements \Iterator{
protected $fileHandler;
protected $key;
protected $current;
protected $fileName;
function __construct($fileName){
$this->fileHandler = fopen($fileName, "r") or die("Unable to open file!");
$this->fileName = $fileName;
$this->key = 0;
}
function __destruct(){
fclose( $this->fileHandler );
}
//Iterator interface
public function current (){
return $this->current;
}
public function key (){
return $this->key;
}
public function next (){
if ( $this->valid() ){
$this->current = fgets( $this->fileHandler );
$this->key++;
}
}
public function rewind (){
$this->__destruct();
$this->__construct( $this->fileName );
}
public function valid (){
return !feof( $this->fileHandler );
}
Usage :
$iterator = new TxtFileIterator("German.txt");
foreach ($iterator as $line) {
echo $line;// or do whatever you want with line
}
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.
I have test.txt file, like this,
AA=1
BB=2
CC=3
Now I wanna find "BB=" and replace it as BB=5, like this,
AA=1
BB=5
CC=3
How do I do this?
Thanks.
<?php
$file = "data.txt";
$fp = fopen($file, "r");
while(!feof($fp)) {
$data = fgets($fp, 1024);
// You have the data in $data, you can write replace logic
Replace Logic function
$data will store the final value
// Write back the data to the same file
$Handle = fopen($File, 'w');
fwrite($Handle, $data);
echo "$data <br>";
}
fclose($fp);
?>
The above peace of code will give you data from the file and helps you to write the data back to the file.
Assuming that your file is structured like an INI file (i.e. key=value), you could use parse_ini_file and do something like this:
<?php
$filename = 'file.txt';
// Parse the file assuming it's structured as an INI file.
// http://php.net/manual/en/function.parse-ini-file.php
$data = parse_ini_file($filename);
// Array of values to replace.
$replace_with = array(
'BB' => 5
);
// Open the file for writing.
$fh = fopen($filename, 'w');
// Loop through the data.
foreach ( $data as $key => $value )
{
// If a value exists that should replace the current one, use it.
if ( ! empty($replace_with[$key]) )
$value = $replace_with[$key];
// Write to the file.
fwrite($fh, "{$key}={$value}" . PHP_EOL);
}
// Close the file handle.
fclose($fh);
The simplest way (if you are talking about a small file as above), would be something like:
// Read the file in as an array of lines
$fileData = file('test.txt');
$newArray = array();
foreach($fileData as $line) {
// find the line that starts with BB= and change it to BB=5
if (substr($line, 0, 3) == 'BB=')) {
$line = 'BB=5';
}
$newArray[] = $line;
}
// Overwrite test.txt
$fp = fopen('test.txt', 'w');
fwrite($fp, implode("\n",$newArray));
fclose($fp);
(something like that)
You can use Pear package for find & replace text in a file .
For more information read
http://www.codediesel.com/php/search-replace-in-files-using-php/