Question

In php I have open a .php file and want to evaluate certain lines. Specifically when the $table_id and $line variables are assigned a value.

Within the text file I have:

...   $table_id = 'crs_class';                      // table name $screen   = 'crs_class.detail.screen.inc';    // file identifying screen structure ... 

amongst other lines. The if statement below never detects the occurance of $table_id or $screen (even without the $ prepended). I can’t understand why it won’t work as the strpos statement below looking for ‘require’ works fine.

So, why isn’t this if statement getting a hit?

while ($line=fgets($fh)) {     //echo 'Evaluating... $line <br>';     **if ((($pos = stripos($line, '$table_id')) === true) || (($pos = stripos($line, '$screen'))===true))**     {         // TODO: Not evaluating tableid and screen lines correctly fix.         // Set $table_id and $screen variables from task scripts         eval($line);     }      if (($pos=stripos($line, 'require')) === true) {          $controller = $line;     } } 

Answer 1

use !==false instead of ===true
stripos returns the position as an integer if the needle is found. And that’s never ===bool.
You might also be interested in PHP’s tokenizer module or the lexer package in the pear repository.