I have one file one.php
<?php //just a php function doen't have to do any thing with the question
function B(){
}
?>
Through php I want to read one.php as it is and write into two.php as it is..
Note- '<' getting converted into '$lt;'
Answer to it is
<?php
$text = file_get_contents("one.php");
file_put_contents("two.php", $text);
?>
Now further what I want is add one more php function say function A(){} to the content of one.php and write it into two.php
That's fairly simple nowadays :-).
$text = file_get_contents("one.php");
file_put_contents("two.php", $text);
For more parameters to the methods, see the PHP.net documentation on file-get-contents and file-put-contents.
If you are after an exact copy of "one.php", then use PHP's "copy" method.
copy('one.php', 'two.php');
In regards to your edited question, the solution is:
$content = file_get_contents('one.php');
$content .= 'function A() {}';
file_put_contents('two.php', $content, FILE_APPEND);
$contents = file_get_contents('one.php');
$newContents = htmlspecialchars ($contents);
file_put_contents('two.php', $newContents);
Your are mixing up strings and resources a little bit. file_get_contents() stores the page in a string. It's easier to use file_put_contents in that case.
<?php
file_put_contents("two.php", htmlspecialchars (file_get_contents('one.php')));
// file_get_contents(): Stores the content of one.php into a string
// htmlspecialchars: encodes html
// file_put_contents(): Writes the string into two.php
?>
In your case, an even easier solution would be:
<?php
include("one.php");
?>
Related
In my view I have this code:
{{L::getSomeContent('content')}}
This method returns content from the database. My question is, is it possible to return and render Blade straight from the database? For example, I have stored in the database:
<img src"{{asset('somepath')}}">
But when rendering this data straight from the database, it will just show like '%7%7'
I have tried Blade::compileString
I hate to suggest this, but eval would work in this case. Before you use this, you have to make sure that the content you pass to it isn't user input. And if it is you have to sanitize it (or trust the user, if the content can be changed in some kind of admin tool)
Instead of using this method you should maybe thinking of some other way to organize your content. For paths you could use a placeholder and just do a string replace before outputting.
Anyhow, be warned: eval() will execute any PHP code that's passed.
Here's a working example. Of course you put that in some kind of helper function to not clutter your view code, but I'll leave that to you.
<?php
$blade = L::getSomeContent('content');
$php = Blade::compileString($blade);
// remove php brackets because eval() doesn't like them
$php = str_replace(['<?php', '?>'], '', $php);
echo eval($php);
?>
As I already mentioned for this particular case (a path to an asset) you could use a placeholder in your content. For example:
Stored in the database
<img src"%ASSET%some/path">
And then inside a helper function and before output, just replace it with the real path:
$content = L::getSomeContent('content');
$html = str_replace('%ASSET%', asset(''), $content);
I found the answer in the comments #blablabla :
protected function blader($str, $data = array())
{
$empty_filesystem_instance = new Filesystem;
$blade = new BladeCompiler($empty_filesystem_instance, 'datatables');
$parsed_string = $blade->compileString($str);
ob_start() and extract($data, EXTR_SKIP);
try {
eval('?>' . $parsed_string);
}
catch (\Exception $e) {
ob_end_clean();
throw $e;
}
$str = ob_get_contents();
ob_end_clean();
return $str;
}
This part seems to be working fine:
Blade::compileString($yourstring);
eval('?>' . $yourstring);
I have a php page that is reading from a file:
$name = "World";
$file = file_get_contents('html.txt', true);
$file = file_get_contents('html.txt', FILE_USE_INCLUDE_PATH);
echo $file;
In the html.txt I have the following:
Hello $name!
When I go to the site, I get "Hello $name!" and not Hello World!
Is there a way to get var's in the txt file to output their value and not their name?
Thanks,
Brian
The second param of file_get_contents has nothing to do with how to interpret the file - it's about which pathes to check when looking for that file.
The result, however, will always be a complete string, and you can only "reinterpolate" it with evial.
What might be a better idea is using the combination of include and output control functions:
Main file:
<?php
$name = "World";
ob_start();
include('html.tpl');
$file = ob_get_clean();
echo $file;
html.tpl:
Hello <?= $name ?>
Note that php tags (<?= ... ?>) in the text ('.tpl') file - without it $name will not be parsed as a variable name.
One possible approach with predefined values (instead of all variables in scope):
$name = "World";
$name2 = "John";
$template = file_get_contents ('html_templates/template.html');
$replace_array = array(
':name' => $name,
':name2' => $name2,
...
);
$final_html = strtr($template, $replace_array);
And in the template.html you would have something like this:
<div>Hello :name!</div>
<div>And also hi to you, :name2!</div>
To specifically answer your question, you'll need to use the 'eval' function in php.
http://php.net/manual/en/function.eval.php
But from a development perspective, I would consider if there was a better way to do that, either by storing $name somewhere more accessible or by re-evaluating your process. Using things like the eval function can introduce some serious security risks.
Is there a way to use PHP to find some HTML within a page, and replace that HTML with other HTML? I'd like for this function to be in a separate functions.php file, and look at each page on page-load for the HTML that needs replacing (unless this isn't as efficient as some other method). Thanks!
//function to add to your function definitions.
function print_processed_html($string)
{
$search = Array("--", "*", "\*", "^", "\^");
$replace = Array("<\hr>", "<b>", "<\b>", "<sup>", "<\sup>");
$processed_string = str_replace($search, $replace , $string);
echo $processed_string;
}
// outputing the string to the page.
<?php
$the_content = get_the_content();
print_processed_html($the_content);
?>
also consider reading through this http://codex.wordpress.org/Function_Reference/the_content for some tips on using the the_content() function
I would like to know if it's possible to execute the php code in a string. I mean if I have:
$string = If i say <?php echo 'lala';?> I wanna get "<?php echo 'dada'; ?>";
Does anybody knows how?
[EDIT] It looks like nobody understood. I wanna save a string like
$string = If i say <?php count(array('lala'));?>
in a database and then render it. I can do it using
function render_php($string){
ob_start();
eval('?>' . $string);
$string = ob_get_contents();
ob_end_clean();
return $string;
}
The problem is that I does not reconize php code into "" (quotes) like
I say "<?php echo 'dada'; ?>"
$string = ($test === TRUE) ? 'lala' : 'falala';
There are lots of ways to do what it looks like you're trying to do (if I'm reading what you wrote correctly). The above is a ternary. If the condition evaluates to true then $string will be set to 'lala' else set to 'falala'.
If you're literally asking what you wrote, then use the eval() function. It takes a passed string and executes it as if it were php code. Don't include the <?php ?> tags.
function dropAllTables() {
// drop all tables in db
}
$string = 'dropAllTables();';
eval($string); // will execute the dropAllTables() function
[edit]
You can use the following regular expression to find all the php code:
preg_match_all('/(<\?php )(.+?)( \?>)/', $string, $php_code, PREG_OFFSET_CAPTURE);
$php_code will be an array where $php_code[0] will return an array of all the matches with the code + <?php ?> tags. $php_code[2] will be an array with just the code to execute.
So,
$string = "array has <?php count(array('lala')); ?> 1 member <?php count(array('falala')); ?>";
preg_match_all('/(<\?php )(.+?)( \?>)/', $string, $php_code, PREG_OFFSET_CAPTURE);
echo $php_code[0][0][0]; // <?php count(array('lala')); ?>
echo $php_code[2][0][0]; // count(array('lala'));
This should be helpful for what you want to do.
Looks like you are trying to concatenate. Use the concatenation operator "."
$string = "if i say " . $lala . " I wanna get " . $dada;
or
$string = "if i say {$lala} I wanna get {$dada}.";
That is what I get since your string looks to be a php variable.
EDIT:
<?php ?> is used when you want to tell the PHP interpreter that the code in those brackets should be interpreted as PHP. When working within those PHP brackets you do not need to include them again. So as you would just do this:
// You create a string:
$myString = "This is my string.";
// You decide you want to add something to it.
$myString .= getMyNameFunction(); // not $myString .= <?php getMyNameFunction() ?>;
The string is created, then the results of getMyNameFunction() are appended to it. Now if you declared the $myString variable at the top of your page, and wanted to use it later you would do this:
<span id="myString"><?php echo $myString; ?></span>
This would tell the interpreter to add the contents of the $myString variable between the tags.
Use token_get_all() on the string, then look for a T_OPEN_TAG token, start copying from there, look for a T_CLOSE_TAG token and stop there. The string between the token next to T_OPEN_TAG and until the token right before T_CLOSE_TAG is your PHP code.
This is fast and cannot fail, since it uses PHP's tokenizer to parse the string. You will always find the bits of PHP code inside the string, even if the string contains comments or other strings which might contain ?> or any other related substrings that will confuse regular expressions or a hand-written, slow, pure PHP parser.
I would consider not storing your PHP code blocks in a database and evaluating them using eval. There is usually a better solution. Read about Design Pattern, OOP, Polymorphism.
You could use the eval() function.
Quite simple question i belive. How to print the whole page into variable and then use where i need.
For instance if the code is:
<?php
$arr = array('hello','mate','world');
foreach ($arr as $a) {print "<p>".$a."</p>"; }
?>
Now if we go to that page, we can see an array output, but i would prefer to print the whole page into variable and then generate static page for instance out of that.
Maybe file_get_content or <<<EOT, but the page will get more complicated later so not sure what is the best option.
Not sure about your exact needs but:
ob_start();
require('/path/to/templates/foo.php');
$template = ob_get_contents();
ob_get_clean();
ob_start();
// your code
$var = ob_get_clean();
print $var;
Why don't you use smarty ,
put all HTML in a template , and insert PHP code or variables into it . in the end , using $x=$smarty->fetch('template_name'); you put all the page in the $x variable ...