first time resorting to actually posting on SO.
Also sorry if this has been asked many times, i think ive about read most of them here, but still no dice.
I have a generated log file continaing text i wish to extract the line in the log file is this:
{22:30:47} System:"Obambivas" StarPos:(-59.938,7.375,56.813)ly Body:13 RelPos:(-0.529636,-0.130899,0.838064)km NormalFlight
So far ive manaaged to get the matches via preg_match_all, and works fine.
However i really need each System:"" only once as the log may have several exacly the same.
Ive tried to use array_unique, but im fairly sure im using it wrong as it either retruns nothing or the same results, ie 10+ matches for each match found
So i need just each unique match from the matches found in the log file.
My code so far (sorry if its messy)
And thanks in advance
if (is_dir($log) && is_readable($log)) {
if (!$files = scandir($log, SCANDIR_SORT_DESCENDING)) {
}
$newest_file = $files[0];
if (!$line = file($log . "/" . $newest_file)) {
} else {
foreach ($line as $line_num => $line) {
$pos = strpos($line, 'System:"');
$pos2 = strrpos($line, "ProvingGround");
if ($pos !== false && $pos2 === false) {
preg_match_all("/\System:\"(.*?)\"/", $line, $matches);
$cssystemname = $matches[1][0];
$curSys["name"] = $cssystemname;
preg_match_all("/\StarPos:\((.*?)\)/", $line, $matches2);
$curSys["coordinates"] = $matches2[1][0];
$coord_parts = explode(",", $curSys["coordinates"]);
$curSys["x"] = $coord_parts[0];
$curSys["y"] = $coord_parts[1];
$curSys["z"] = $coord_parts[2];
echo $curSys["name"].' | Coords: '.$curSys["x"].','.$curSys["y"].','.$curSys["z"].'<br />';
}
}
}
}
I added $hash array to avoid duplicates
if (is_dir($log) && is_readable($log)) {
if (!$files = scandir($log, SCANDIR_SORT_DESCENDING)) {
}
$newest_file = $files[0];
if (!$line = file($log . "/" . $newest_file)) {
} else {
$hash = array();
foreach ($line as $line_num => $line) {
$pos = strpos($line, 'System:"');
$pos2 = strrpos($line, "ProvingGround");
if ($pos !== false && $pos2 === false) {
preg_match_all("/\System:\"(.*?)\"/", $line, $matches);
$cssystemname = $matches[1][0];
if ($hash[$cssystemname] == "")
{
$curSys["name"] = $cssystemname;
preg_match_all("/\StarPos:\((.*?)\)/", $line, $matches2);
$curSys["coordinates"] = $matches2[1][0];
$coord_parts = explode(",", $curSys["coordinates"]);
$curSys["x"] = $coord_parts[0];
$curSys["y"] = $coord_parts[1];
$curSys["z"] = $coord_parts[2];
echo $curSys["name"].' | Coords: '.$curSys["x"].','.$curSys["y"].','.$curSys["z"].'<br />';
}
} else $hash[$cssystemname] = "inhash";
}
}
Related
I have a problem where I need to search a HTML page/snippet and replace any value that is between four percentile symbols and convert to a constant variable, e.g. %%THIS_CONSTANT%% becomes THIS_CONSTANT.
Right now I am searching through the page, line by line, and I am able to find matches and replace them by using preg_match_all and preg_replace.
$file_scan = fopen($directory.$file, "r");
if ($file_scan) {
while (($line = fgets($file_scan)) !== false) {
if(preg_match_all('/\%%(.*?)\%%/', $line, $matches)){
foreach($matches as $match){
foreach($match as $m){
$repair = preg_replace('/\%%(.*?)\%%/', $m, $m);
if(preg_match('/\%%(.*?)\%%/', $m, $m)){
} else {
echo $repair.' '.$j;
$j++;
}
}
$lines[$i] = preg_replace('/\%%(.*?)\%%/', constant($repair), $line);
}
} else {
$lines[$i] = $line;
}
$i++;
}
$template[$name] = implode("", $lines);
fclose($file_scan);
}
What this code is not able to do is find and replace multiple matches on a single line. For instance, if there is a line with:
<img src="%%LOGO_IMAGE%%"><h1>%%TITLE%%</h1>
The above code would replace both items with the same value (TITLE). It would also give the error couldn't find constant on the first loop, but work correctly on the second.
This happens very rarely, but I just wish to know how to modify multiple instances on a single line just to be safe.
Edit:
I am able to replace the majority of the code with this:
$file_scan = fopen($directory.$file, "r");
if ($file_scan) {
while (($line = fgets($file_scan)) !== false) {
$line = preg_replace('/\%%(.*?)\%%/', '$2'.'$1', $line);
echo $line;
}
fclose($file_scan);
My last issue is changing the replaced items to constants. Is that possible?
Final Edit:
With the help from Peter Bowers suggestion, I used preg_replace_callback to add the ability to change the keyword to a constant:
foreach($filenames as $file){
$name = str_replace('.html', '', $file);
$template[$name] = preg_replace_callback('/\%%(.*?)\%%/', function($matches){
$matches[0] = preg_replace('/\%%(.*?)\%%/', '$1', $matches[0]);
return constant($matches[0]);
}, file_get_contents($directory.$file));
}
return $template;
Here's a much simpler implementation.
$file_scan = fopen($directory.$file, "r");
if ($file_scan) {
$out = '';
while (($line = fgets($file_scan)) !== false) {
$out .= preg_replace('/\%%(.*?)\%%/', '$1', $line);
$i++;
}
$template[$name] = $out;
fclose($file_scan);
}
Or, even simpler:
$str = file_get_contents($directory.$file);
$template[$name] = preg_replace('/\%%(.*?)\%%/', '$1', $str);
And, since we're going totally simple here...
$template[$name] = preg_replace('/\%%(.*?)\%%/', '$1', file_get_contents($directory.$file));
(Obviously you are losing some of your error checking capabilities as we approach the one-liner, but - hey - I was having fun... :-)
Try with this:
<?php
define('TITLE', 'Title');
define('LOGO_IMAGE', 'Image');
$lines = array();
$file_scan = fopen($directory.$file, "r");
if ($file_scan) {
while (($line = fgets($file_scan)) !== false) {
if(preg_match_all('/\%%(.*?)\%%/', $line, $matches)){
for($i = 0; $i < count($matches[0]); $i++) {
$line = str_replace($matches[0][$i], constant($matches[1][$i]), $line);
}
$lines[] = $line;
print_r($line);
}
}
}
$template[$name] = implode("", $lines);
fclose($file_scan);
?>
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 have a table where a variable in a row containing IP information is being echoed. I think there's an issue with my if statement, because if I use the following then I can get the variable to echo:
echo $row['log_ip'] = substr_replace ($row['log_ip'], $ipv4replacement, stripos ($row['log_ip'], $ipv4needle, $offset = 2));
My current code:
$ipv6needle = ':';
$ipv4needle = '.';
$ipv4replacement = '.***.***.***';
$ipv6replacement = ':****:****:****:****:****:****:****';
if (strpos($row['log_ip'], ':') !== FALSE) {
echo $row['log_ip'] = substr_replace ($row['log_ip'], $ipv4replacement, stripos ($row['log_ip'], $ipv4needle, $offset = 2));
else
echo $row['log_ip'] = substr_replace ($row['log_ip'], $ipv6replacement, stripos ($row['log_ip'], $ipv6needle, $offset = 2)); }
Your code is full of weird assignments, I don't know what you want to achieve with them, but here's a corrected and refactored code.
<?php
$offset = 2;
if (strpos($row["log_ip"], ":") !== false) {
$needle = ".";
$replacement = ".***.***.***";
}
else {
$needle = ":";
$replacement = ":****:****:****:****:****:****:****";
}
$row["log_ip"] = substr_replace($row["log_ip"], $replacement, stripos($row["log_ip"], $needle, $offset));
echo $row["log_ip"];
Answer to the question in the comment:
<?php
function mask_ip_address($ip_address) {
if (strpos($ip_address, ".") !== false) {
$parts = explode(".", $ip_address);
return $parts[0] . str_repeat(".***", 3);
}
$parts = explode(":", $ip_address);
return $parts[0] . str_repeat(":****", 7);
}
function mask_ip_address_test($ip_address, $expected) {
assert($expected === mask_ip_address($ip_address));
}
mask_ip_address_test("17.0.0.1", "17.***.***.***");
mask_ip_address_test("fe80::200:5aee:feaa:20a2", "fe80:****:****:****:****:****:****:****");
I'm trying to search a PHP file for a string and when that string is found I want to return the whole LINE that the string is on. Here is my example code. I'm thinking I would have to use explode but cannot figure that out.
$searchterm = $_GET['q'];
$homepage = file_get_contents('forms.php');
if(strpos($homepage, "$searchterm") !== false)
{
echo "FOUND";
//OUTPUT THE LINE
}else{
echo "NOTFOUND";
}
Just read the whole file as array of lines using file function.
function getLineWithString($fileName, $str) {
$lines = file($fileName);
foreach ($lines as $lineNumber => $line) {
if (strpos($line, $str) !== false) {
return $line;
}
}
return -1;
}
You can use fgets() function to get the line number.
Something like :
$handle = fopen("forms.php", "r");
$found = false;
if ($handle)
{
$countline = 0;
while (($buffer = fgets($handle, 4096)) !== false)
{
if (strpos($buffer, "$searchterm") !== false)
{
echo "Found on line " . $countline + 1 . "\n";
$found = true;
}
$countline++;
}
if (!$found)
echo "$searchterm not found\n";
fclose($handle);
}
If you still want to use file_get_contents(), then do something like :
$homepage = file_get_contents("forms.php");
$exploded_page = explode("\n", $homepage);
$found = false;
for ($i = 0; $i < sizeof($exploded_page); ++$i)
{
if (strpos($buffer, "$searchterm") !== false)
{
echo "Found on line " . $countline + 1 . "\n";
$found = true;
}
}
if (!$found)
echo "$searchterm not found\n";
If you use file rather than file_get_contents you can loop through an array line by line searching for the text and then return that element of the array.
PHP file documentation
You want to use the fgets function to pull an individual line out and then search for the
<?PHP
$searchterm = $_GET['q'];
$file_pointer = fopen('forms.php');
while ( ($homepage = fgets($file_pointer)) !== false)
{
if(strpos($homepage, $searchterm) !== false)
{
echo "FOUND";
//OUTPUT THE LINE
}else{
echo "NOTFOUND";
}
}
fclose($file_pointer)
Here is an answered question about using regular expressions for your task.
Get line number from preg_match_all()
Searching a file and returning the specified line numbers.
I have a file file.txt. This file has portions and parts that recur throughout the file. I
am trying to read the parts between the last and the first key words.
I have managed to get the first and the last key words but I can't read the lines between the key words.
Here is my script
$file=file('file.txt');
$begin = 'first_line';
$end='last_line';
foreach ($file as $lineNumber => $line) {
$lineNumber++;
if (strpos($line,$begin))
{
echo $lineNumber.$line."<br/>";
}
elseif (strpos($line,$end))
{
echo $value."<br/>";
}
echo $lineNumber. $line."<br/>";
}
Please some one assist me.
Here you go:
$lines=file('data.txt');
$begin = 'first_line';
$end='last_line';
$switch = false;
$content = "";
foreach ($lines as $line_num => $line) {
if(strpos($line, $begin) !== false) {$switch = true;continue;}
if(strpos($line, $end) !== false) $switch = false;
if(!$switch) continue;
$content .= "Line #<b>{$line_num}</b> : " . htmlspecialchars($line) . "<br />\n";
}
echo $content;
This will do it:
$file = file('file.txt');
$begin = 'first_line';
$end = 'last_line';
$isInside = false;
foreach ($file as $lineNumber => $line)
{
$lineNumber++;
if (!(strpos($line,$begin)===false))
$isInside = true;
if ($isInside)
echo $lineNumber." : ".$line."<br/>";
if (!(strpos($line,$end)===false))
$isInside = false;
}
Some points:
You were displaying everything regardless, my script only shows lines between $begin and $end.
Your comparison is case-sensitive
You had a major bug using strpos and assuming it returns true if it matches. It could also return 0 if the string matches at the beginning,hence using === to catch this. See the disclaimer on the strpos page.
$file=fopen("welcome.txt","r");
while(!feof($file))
{
$open=fgets($file);
print $open;
}
fclose($file);