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<?php // HTML Template v0.10 // // Changes from HTML Templates v0.9 // // AddSlashes replaced by ereg_replace("\"","\\\"... // to prevent single quotes from getting escaped too (javascript errors) // // Added EvalTemplate which returns the filled in template, this way // it's now possible to create any kind of template e.g. mail // // What is HTML Templates v0.10 // // A function that fills in php variables in a template file to make // the design of your website independent of the php code.. I hope. // Call: "$template=EvalTemplate($templatefile, $vars);" // WARNING: no warranty whatsoever, use at your own risk, there will be bugs // and/or security risks in this code. // // $templatefile is a full filename of the html file to use as a template. // // $vars is a list of all the variables used in the templatefile. It is // needed since all global variables need to be declared in the function. // The format is "\$varname" [ ", \$varname" ]* e.g.: "\$var1, \$var2" // // The template file can contain any html-code. Variables can be included // anywhere like this: '<body bgcolor="$bgcolor1">' // If you want to display some html code multiple times for array variables // use something like the following format: // <select name="test"> { // <option value="$test[]">$test[]</option> // } </select> // // Mistyping this like {{ $test[] } will cause strange errors as php tries // to interpret $test[]. It will complain that is needs a STRING or an INT or // something as it wants an index key between [ and ] :) // // Security. // I don't check for /dev/zero, or other large template files, if you can // choose the template file, you obviously can already create malicious php // files. // The template files should be safe, although every line is incuded in an // 'eval' statement. I replace every '"' with a '\"', so you shouldn't be // able to 'escape' from the echo statement in a template file. // // Used variables. // Since the function 'globals' any variables you defined in your template // it is easy to get a variabele name clash. Here's the list of allt he // variables I used in this function: // $templatefile, $line, $vars: function declarations // $dt_result // $dt_middle // $dt_explode // $dt_multiple // $dt_expl2 // $dt_uservar // $dt_uservar_count // $dt_i // $dt_temp // $dt_tail // $dt_template // // copyright 1998 Auke van Slooten // released under the GNU Genereal Public License function EvalLine($line, $vars) { eval( "global $vars;"); if (ereg( "[^{]{[^{}][^}]*}",$line, $dt_result)) { // found a multiple $dt_middle=substr($dt_result[0],1,strlen($dt_result[0])-1);// cut the "[^{]" character $dt_explode=explode($dt_middle, $line); // explode on the multiple part $dt_evalhead=EvalLine($dt_explode[0], $vars); // no more multiples here $dt_multiple=substr($dt_middle,1,strlen($dt_middle)-2); // cut "{" and "}" $dt_expl2=explode( "[]",$dt_multiple); $dt_uservar=strrchr($dt_expl2[0], "\$"); // get the first array variable name eval( "\$dt_uservar_count=@count($dt_uservar);"); // count the length of the array // @ suppresses warnings when the array is not defined // this line replaces things like $var[] with $var[$dt_i]. $dt_multiple=ereg_replace( "\\\$([^\[]*)\[\]", "\$\\1[\$dt_i]",$dt_multiple); for ($dt_i=0;$dt_i<$dt_uservar_count;$dt_i++) { eval( "\$dt_evalmultiple.=\"$dt_multiple\";"); // let eval fill in the values } $dt_explode[0]= ""; // first part is done, remove it $dt_temp=implode($dt_explode, $dt_middle); // and glue the parts together again $dt_tail=substr($dt_temp, strlen($dt_middle), strlen($dt_temp)); // cut the first "middle" part of, // its in dt_evalmultiple now // could also go for EvalLine($dt_explode[1], $vars) but there might be more elements... return $dt_evalhead.$dt_evalmultiple.EvalLine($dt_tail, $vars); } else { // no multiples, just replace double {{ with a single { and let eval fill in the values for variables eval( "return \"".ereg_replace( "{{", "{",$line). "\";"); } } Function EvalTemplate($templatefile, $vars) { $dt_template=ereg_replace( "\"", "\\\"",implode(file($templatefile), "")); return EvalLine($dt_template, $vars); } Function DisplayTemplate($templatefile, $vars) { echo EvalTemplate($templatefile, $vars); } ?> | ||||||||||
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