how to ouput text in lines in php?

shams · 07-31-2017, 11:59 AM

Hi,
In this php code the file_get_contents(), gets the text and passing to write on image the problem is, file_get_contents() passing all the text in one line not breaks to each new line, so all the text in image is in one line, how i can break to each new line:

PHP Code:



<?php 
 
require __DIR__.'/../vendor/autoload.php'; 
 
use GDText\Box; 
use GDText\Color; 
 
include('../src/FarsiGD.php'); 
$im = imagecreatetruecolor(500, 500); 
$backgroundColor = imagecolorallocate($im, 0, 18, 64); 
imagefill($im, 0, 0, $backgroundColor); 
 
$box = new Box($im); 
$box->setFontFace(__DIR__.'/fonts/BahijRegular.ttf'); 
$box->setFontColor(new Color(255, 75, 140)); 
$box->setTextShadow(new Color(0, 0, 0, 50), 2, 2); 
$box->setFontSize(23); 
$box->setLineHeight(1.5); 
$box->enableDebug(); 
$box->setBox(20, 20, 460, 460); 
$box->setTextAlign('right', 'top'); 
 
$gd = new FarsiGD(); 
 
$text = file_get_contents('/home/user/message'); 
 
$text = $gd->persianText($text, 'fa', 'normal'); 
  
$box->draw($text); 
 
header("Content-type: image/png;"); 
imagepng($im, null, 9, PNG_ALL_FILTERS);

scasey · 07-31-2017, 03:16 PM

It looks like that's what file_get_contents does..."Reads entire file into a string"
Try file, which will load each line into an array element, then loop the array to populate $text, appending a line feed at the end of each element.
Or fget, to retrieve one line at a time and add to $text, again with appended line feed.

Alternate (kinda geeky) idea: Put some "special character" (something like xxx) at the end of each line, then substitute \n for xxx in $text before doing the draw function.

sundialsvcs · 08-01-2017, 08:39 AM

Quote:

Originally Posted by scasey

It looks like that's what file_get_contents does..."Reads entire file into a string"
Try file, which will load each line into an array element, then loop the array to populate $text, appending a line feed at the end of each element.

Or fget, to retrieve one line at a time and add to $text, again with appended line feed.

I'm guessing that you are outputting to a web page. In this case, "line feed" would not be relevant: you would use the <br/> tag.

One simple way to do it is to split() the string into an array, then immediately join() that array using '<br/>' as the separator. This will reassemble the string with a break separating each piece. Output the resulting string followed by another break. That's a convenient way to do it if memory is not an issue.

If it might be, you can read the file "line by line" and output each line followed by a break. An arbitrarily-large file can be output in this way.

scasey · 08-01-2017, 10:59 AM

Quote:

Originally Posted by sundialsvcs

I'm guessing that you are outputting to a web page. In this case, "line feed" would not be relevant: you would use the <br/> tag.

Perhaps...although the posted script is using the data in $text to create an image (.png) file. In any case, that's why I used "line feed" instead of \n or CRLF or <br>, because I didn't know what was specifically appropriate.
Again, using php's file function will load an array as you suggest, and yes, using php's join() function could be used to add the "line feed"

sundialsvcs · 08-02-2017, 08:00 AM

If you are generating an image and outputting that image, then there are PHP functions to do that, and it is imperative that your program produces no other output. (For instance, a single blank space following a ?> tag at the end of the file, which will corrupt the image output by adding a space-valued byte at the end.)

shams · 08-02-2017, 11:11 PM

Thaks for replies, i got this piece of code, this code prints the text in new lines:

PHP Code:



<?php 
$filestring = file_get_contents('/home/user/message'); 
    $filearray = explode("\n", $filestring); 
while (list ($key, $val) = each ($filearray) ) print "$val<br />"; 
?>

Now i am trying to add this code to my one, what it do is this:

PHP Code:



$gd = new FarsiGD(); 
 
$filestring = file_get_contents('/home/user/message'); 
    $filearray = explode("\n", $filestring); 
while (list ($key, $val) = each ($filearray) ); 
 
 
$val = $gd->persianText($val, 'fa', 'normal'); 
 
$box->draw($val);

But when run the code get only blank image without text, means code doesn't get the text.

frieza · 08-03-2017, 10:37 AM