eval and HEREDOC
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From: Sorin Buturugeanu on 20 Jul 2010 17:11 Hello, I am having trouble with a part of my templating script. I'll try to explain: The template itself is HTML with PHP code inside it, like: <div><?=strtoupper($user['name']);?></div> And I have the following code as part of the templating engine: $template = file_get_contents($file); $template = "return <<<TEMPLATE\n".$template."\nTEMPLATE;\n"; $template = eval($template); The problem is that the eval() HEREDOC combination gives the following output: <?=strtoupper(Array['time']);?> If in the HTML file (template) I use <div><?=strtoupper({$user['name']});?></div> I get <?=strtoupper(username);?> as an output. I have tried closing the php tag like this: $template = "return <<<TEMPLATE\n?>".$template."\nTEMPLATE;\n"; but the extra ?> only gets outputed as HTML. This is my first post to this mailing list, so I great you all and thank you for any kind of solution to my problem. Thank you!
From: "Daevid Vincent" on 20 Jul 2010 17:49 > -----Original Message----- > From: Sorin Buturugeanu [mailto:mail(a)soin.ro] > Sent: Tuesday, July 20, 2010 2:11 PM > To: php-general(a)lists.php.net > Subject: [PHP] eval and HEREDOC > > Hello, > > I am having trouble with a part of my templating script. I'll > try to explain: > > The template itself is HTML with PHP code inside it, like: > > <div><?=strtoupper($user['name']);?></div> > > And I have the following code as part of the templating engine: > > $template = file_get_contents($file); > $template = "return <<<TEMPLATE\n".$template."\nTEMPLATE;\n"; > $template = eval($template); > > The problem is that the eval() HEREDOC combination gives the > following output: > > <?=strtoupper(Array['time']);?> > > If in the HTML file (template) I use > > <div><?=strtoupper({$user['name']});?></div> > > I get <?=strtoupper(username);?> as an output. > > I have tried closing the php tag like this: > > $template = "return <<<TEMPLATE\n?>".$template."\nTEMPLATE;\n"; > > but the extra ?> only gets outputed as HTML. > > This is my first post to this mailing list, so I great you > all and thank you for any kind of solution to my problem. Why are you using HEREDOC to begin with? I personally find them to be ugly and more trouble than they're worth. You can write the same thing as this I think (untested): $template = eval(file_get_contents($file)); But you might also consider using "include_once" or "require_once" instead of this "eval()" business. Also note, that a string can span more than one line and have variables in it. It can even be used with code, so HEREDOC is again useless for most situations: $foo = " Hello $name,\n \n Today is ".date('Y-m-d')."\n \n Lorem ipsum dolor sit amet, consectetur adipiscing elit. \n Nulla eros purus, pharetra a blandit non, pellentesque et leo. In augue metus, mattis a sollicitudin in, placerat vitae elit. \n Quisque elit mauris, varius sit amet cursus sed, eleifend a mauris. ";
From: Sorin Buturugeanu on 20 Jul 2010 18:04 Hello Vincent and thank you for your reply :). That's true, I forgot to explain how I got to using HEREDOC, so .. Using eval(file_get_contents($file)) just outputs the result on the spot and I need to get the whole output (without echoing it) and do some more things with it. require_once() doesn't fit here (from what I can tell), because it would still just include the file in echo the output. I think there must be a solution, but I'm missing something here .. Thanks again! -- Sorin Buturugeanu http://www.soin.ro On Wed, Jul 21, 2010 at 12:49 AM, Daevid Vincent <daevid(a)daevid.com> wrote: > > > -----Original Message----- > > From: Sorin Buturugeanu [mailto:mail(a)soin.ro] > > Sent: Tuesday, July 20, 2010 2:11 PM > > To: php-general(a)lists.php.net > > Subject: [PHP] eval and HEREDOC > > > > Hello, > > > > I am having trouble with a part of my templating script. I'll > > try to explain: > > > > The template itself is HTML with PHP code inside it, like: > > > > <div><?=strtoupper($user['name']);?></div> > > > > And I have the following code as part of the templating engine: > > > > $template = file_get_contents($file); > > $template = "return <<<TEMPLATE\n".$template."\nTEMPLATE;\n"; > > $template = eval($template); > > > > The problem is that the eval() HEREDOC combination gives the > > following output: > > > > <?=strtoupper(Array['time']);?> > > > > If in the HTML file (template) I use > > > > <div><?=strtoupper({$user['name']});?></div> > > > > I get  <?=strtoupper(username);?> as an output. > > > > I have tried closing the php tag like this: > > > > $template = "return <<<TEMPLATE\n?>".$template."\nTEMPLATE;\n"; > > > > but the extra ?> only gets outputed as HTML. > > > > This is my first post to this mailing list, so I great you > > all and thank you for any kind of solution to my problem. > > Why are you using HEREDOC to begin with? I personally find them to be ugly > and more trouble than they're worth. > > You can write the same thing as this I think (untested): > > $template = eval(file_get_contents($file)); > > But you might also consider using "include_once" or "require_once" instead > of this "eval()" business. > > Also note, that a string can span more than one line and have variables in > it. It can even be used with code, so HEREDOC is again useless for most > situations: > > $foo = " > Hello $name,\n > \n > Today is ".date('Y-m-d')."\n > \n > Lorem ipsum dolor sit amet, consectetur adipiscing elit. > \n > Nulla eros purus, pharetra a blandit non, pellentesque et leo. In augue > metus, mattis a sollicitudin in, placerat vitae elit. > \n > Quisque elit mauris, varius sit amet cursus sed, eleifend a mauris. > "; >
From: lists on 20 Jul 2010 18:45 On Wed, 21 Jul 2010 01:04:12 +0300, Sorin Buturugeanu <mail(a)soin.ro> wrote: > Hello Vincent and thank you for your reply :). > > That's true, I forgot to explain how I got to using HEREDOC, so .. > > Using eval(file_get_contents($file)) just outputs the result on the > spot and I need > to get the whole output (without echoing it) and do some more things with > it. > > require_once() doesn't fit here (from what I can tell), because it > would still just > include the file in echo the output. > > I think there must be a solution, but I'm missing something here .. Check out the ob_* functions You could do this ob_start(); include "/your/file.php"; $output = ob_get_clean(); echo $output; Jim > > Thanks again! > > -- > Sorin Buturugeanu > http://www.soin.ro > > > On Wed, Jul 21, 2010 at 12:49 AM, Daevid Vincent <daevid(a)daevid.com> > wrote: >> >> > -----Original Message----- >> > From: Sorin Buturugeanu [mailto:mail(a)soin.ro] >> > Sent: Tuesday, July 20, 2010 2:11 PM >> > To: php-general(a)lists.php.net >> > Subject: [PHP] eval and HEREDOC >> > >> > Hello, >> > >> > I am having trouble with a part of my templating script. I'll >> > try to explain: >> > >> > The template itself is HTML with PHP code inside it, like: >> > >> > <div><?=strtoupper($user['name']);?></div> >> > >> > And I have the following code as part of the templating engine: >> > >> > $template = file_get_contents($file); >> > $template = "return <<<TEMPLATE\n".$template."\nTEMPLATE;\n"; >> > $template = eval($template); >> > >> > The problem is that the eval() HEREDOC combination gives the >> > following output: >> > >> > <?=strtoupper(Array['time']);?> >> > >> > If in the HTML file (template) I use >> > >> > <div><?=strtoupper({$user['name']});?></div> >> > >> > I get <?=strtoupper(username);?> as an output. >> > >> > I have tried closing the php tag like this: >> > >> > $template = "return <<<TEMPLATE\n?>".$template."\nTEMPLATE;\n"; >> > >> > but the extra ?> only gets outputed as HTML. >> > >> > This is my first post to this mailing list, so I great you >> > all and thank you for any kind of solution to my problem. >> >> Why are you using HEREDOC to begin with? I personally find them to be > ugly >> and more trouble than they're worth. >> >> You can write the same thing as this I think (untested): >> >> $template = eval(file_get_contents($file)); >> >> But you might also consider using "include_once" or "require_once" > instead >> of this "eval()" business. >> >> Also note, that a string can span more than one line and have variables > in >> it. It can even be used with code, so HEREDOC is again useless for most >> situations: >> >> $foo = " >> Hello $name,\n >> \n >> Today is ".date('Y-m-d')."\n >> \n >> Lorem ipsum dolor sit amet, consectetur adipiscing elit. >> \n >> Nulla eros purus, pharetra a blandit non, pellentesque et leo. In augue >> metus, mattis a sollicitudin in, placerat vitae elit. >> \n >> Quisque elit mauris, varius sit amet cursus sed, eleifend a mauris. >> "; >> > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php
From: David Robley on 20 Jul 2010 20:54
Sorin Buturugeanu wrote: > Hello, > > I am having trouble with a part of my templating script. I'll try to > explain: > > The template itself is HTML with PHP code inside it, like: > > <div><?=strtoupper($user['name']);?></div> > > And I have the following code as part of the templating engine: > > $template = file_get_contents($file); > $template = "return <<<TEMPLATE\n".$template."\nTEMPLATE;\n"; > $template = eval($template); > > The problem is that the eval() HEREDOC combination gives the following > output: > > <?=strtoupper(Array['time']);?> > > If in the HTML file (template) I use > > <div><?=strtoupper({$user['name']});?></div> > > I get <?=strtoupper(username);?> as an output. > > I have tried closing the php tag like this: > > $template = "return <<<TEMPLATE\n?>".$template."\nTEMPLATE;\n"; > > but the extra ?> only gets outputed as HTML. > > This is my first post to this mailing list, so I great you all and thank > you for any kind of solution to my problem. > > Thank you! Possibly your php environment has short-tags turned off. Cheers -- David Robley To save trouble later, Joe named his cat Roadkill Fred Today is Boomtime, the 56th day of Confusion in the YOLD 3176. |