To percent encode a input string (an XML file), only for % and line terminators..
Don't roll your own URL encoding. Use the built-in stuff.
$xml = urlencode($xml);
If I understood your question correctly, you'll need to do something like
$input .= 'datacenter: ' . str_replace(array('\n', '\r'), array('%0A', '%0D'), $xmlfile) . "\n";
Related
I'm using PHP to send a string with $_GET to another webpage.
My main issue is when I try to see the whole string in my link just appear the first word "Im".
I'm pretty sure it is by double quotes but I'm not sure to do this.
<a href="edit.php?title=library&description=Im" going="" to="" the="" library="" tomorrow="">
I try to put this in my PHP code to replace "" character to '' but it doesn't work.
$length = strlen($_GET['description']);
$i=0;
do{
$_GET['description'][$i] = preg_replace('/["]/', '', $_GET['description][$i]);
$i++;
}while($i < $length);
My PHP link is the next:
echo "<a href=edit.php?title=$_GET[title]&description=$_GET[description]>";
If anyone knows what's going on, please help me.
Have you tried using the rawurlencode function?
// if $_GET["title"] = "Im going to the library tomorrow" ...
echo "<a href=edit.php?title=" . rawurlencode($_GET["title"]) . "&description=" . rawurlencode($_GET["description"]) . ">";
You may need to use rawurldecode when you receive this.
I try to print a big JSON block (100k) to the browser, but the server fails without an error.
For example:
echo 'var config = ' . json_encode( $config ) . ';' . PHP_EOL;
I Have found that if i send a small piece, it's OK.
I have found that if I put line breaks in the JSON string, it's OK even if the string is 400k.
For example:
$config_json = json_encode( $config );
$config_json = str_replace( '},', '},' . PHP_EOL, $config_json );
echo 'var config = ' . $config_json . ';' . PHP_EOL;
But the breaklines breaks my JSON.
So, if it's a buffer setting, why the PHP_EOL helps?
I have tried also to split the JSON to pieces like here: https://stackoverflow.com/a/19156563/1009525, But without success, Only the breaklines helps me.
As you write
the server fails without an error
I presume you mean that the server sends a response to the client (status code: 200 - no error), but the response body (the content) is empty (this is the failure).
You should check this because if actually the server sends a response with content then the issue is not with php, nginx or buffering.
Otherwise (as suggested in comments) maybe the JSON instead of inside a <script> - </script> block may be wrapped between <pre> tags and this could be the problem (but I can't help unless you post more of your code).
From now on I assume the response sent from the server is empty
The code you posted is valid and is supposed to handle correctly the output string you're building up (that's far below PHP limits).
Said that it seems a weird buffering issue. I write "weird" because as far as I know (and I took time to do some research too) buffering should not be influenced by line breaks.
I have found that if I put line breaks in the JSON string, it's OK even if the string is 400k.
A quick workaround to solve your problem is to output a valid JSON with line breaks. You just need to specify an option to json_encode:
echo 'var config = ' . json_encode( $config, JSON_PRETTY_PRINT ) . ';' . PHP_EOL;
JSON_PRETTY_PRINT tells json_encode to format the json to be more readable and doing so will add line breaks.
(Note that this option is available for PHP 5.4.0 and above)
I hope the above solution works for you.
Anyway I strongly suggest you to investigate further the issue in order to let the original code too to work.
First you should ensure you're running a recent and stable version of both nginx and php.
Then I would check nginx configuration file, php-fpm configuration (if you're using php-fpm) and finally php configuration.
Also check php, nginx, and php-fpm error logs.
try using php heredoc for echoing http://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc
In case you don't have PHP version > 5.4.0 installed on your server a quick workaround could be something like this. The below snippet works for a test array. Initial test was with an array of 250Kb. Since i can't post the actual test array here is a test link with a smaller example. It is as the result of JSON_PRETTY_PRINT though.
$out = json_encode($arr,JSON_FORCE_OBJECT);
$out = str_replace( ':{', ':' . PHP_EOL . ' ' . '{', $out );
$out = str_replace( '},', PHP_EOL . ' },', $out );
$out = str_replace( ',', ',' . PHP_EOL . ' ', $out );
$out = str_replace( '},' . PHP_EOL . ' ', '},' . PHP_EOL . ' ', $out );
$out = str_replace( '}}', PHP_EOL . ' }' . PHP_EOL . '}', $out );
echo $out;
I need help with my PHP, I'm using str_ireplace() and I want to filter something out and replace it with what I have.
I find it hard to explain what I am talking about so I will give an example below:
This is what I need
$string = "<error> " . md5(rand(0, 1000)) . time() . " </error> Test:)";
then I want to remove and replace the whole <error> .... </error> with nothing.
So the end outcome should just print 'Test:)'.
Your question is not perfectly clear, but I believe I may understand what you are asking. This code may do the trick:
$string = " " . md5(rand(0, 1000)) . time() . " Test:)";
$newstring = preg_replace("/.*?\ /i", "", $string);
This uses regular expressions to filter out everything that comes before the space (and also removes the space)
I'm grabbing a string from the database that could be something like String’s Title however I need to replace the ’ with a ' so that I can pass the string to an external API. I've used just about every variation of escaped strings in str_replace() that I can think of to no avail.
$stdin = mb_str_replace('’', '\'', $stdin);
Implementation of mb_str_replace() here: http://www.php.net/manual/en/ref.mbstring.php#107631
I mean this:
<?php
function mb_str_replace($needle, $replacement, $haystack) {
return implode($replacement, mb_split($needle, $haystack));
}
echo mb_str_replace('’', "'", "String’s Title");
It may solve encoding problems.
I have just tested this:
echo str_replace('’', "'", $cardnametitle);
//Outputs: String's Title
Edit: I believe that entries in your database have been htmlentitiesed.
Note: I'm pretty sure this is not a good solution, even though it did solve your problem I think there should be a better way to do it.
Try this
$s = "String’s Title";
$h = str_replace("’","'",$s);
echo $h;
Also can Try with preg_replace
echo preg_replace('/\’/',"'","String’s Title");
I don't know why str_replace() is not working for you.
I feel you haven't tried it in correct way.
Refer LIVE DEMO
<?php
$str = "String’s Title";
echo str_replace('’', '\'', $str) . "\n";
echo str_replace("’", "'", $str);
?>
OUTPUT:
String's Title
String's Title
UPDATE 1:
You may need to try setting the header as
header('Content-Type: text/html; charset=utf-8');
I came across a similar issue trying to replace apostrophes with underscores... I ended up having to write this (and this was for a WordPress site):
$replace = array(",","'","’"," ","’","–");
$downloadTitle = str_replace( $replace,"_",get_the_title($gallery_id));
I'm new to PHP myself, and realize this is pretty hideous code, but it worked for me. I realized it was the "’" that REALLY needed to be factored in for some reason.
Ok I need to find out what is contained inside a PHP variable and I have it to do it visually, is there a function to display whatever that's contained in a string as it is?
For example :
$TEST = ' ' . "\n" . ' ';
if I use echo the output will be :
while i want it to be :
 \n 
is it possible? (I hope I was clear enough)
ty
You can use json_encode with htmlspecialchars:
$TEST = ' ' . "\n" . ' ';
echo json_encode(htmlspecialchars($TEST));
Note that json_encode has third agrument in PHP 5.4.
var_dump() should do the work for you?
Example:
echo "<pre>";
var_dump($variable);
echo "</pre>";
Use <pre> to keep the format structure, makes it alot easier to read.
Resources:
http://php.net/manual/en/function.var-dump.php
http://www.w3schools.com/tags/tag_pre.asp
Try print_r, var_dump or var_export functions, you'll find them very handy for this kind of needs!
http://www.php.net/manual/en/function.htmlspecialchars.php
or
http://www.php.net/manual/en/function.htmlentities.php
$TEST = ' ' . "\n" . ' ';
echo htmlspecialchars(str_replace('\n','\\n', $TEST), ENT_QUOTES);
or
$TEST = ' ' . "\n" . ' ';
echo htmlentities(str_replace('\n','\\n',$TEST), ENT_QUOTES);
You may have to encode the newlines manually. If you want to encode them as actual newlines you can use nl2br. Or string replace these characters with your preference. Update: as I have added to the code per request. String replace special characters you wish to see like newlines and tabs.
assuming you want it for the debugging purposes, let me suggest to use urlencode(). I am using it to make sure I don't miss any invisible character.
The output is not that clear but it works for me.