Question

How do I replace using the following code?

ereg_replace('%Data_Index\[.\]%', $this->resultGData[$key ][\\1], $var) 

I want to replace the number in [] %Data_Index
to $this->resultGData[$key ][\\1] same %Data_Index
and how ex %Data_Index[1] = $this->resultGData[$key][1], $var);

replace number in %Data_Index[...........] in []
to $this->resultGData[$key ][............] same number

Answer 1

Try the preg_replace() function with the e modifier instead:

preg_replace('/%Data_Index\[(\d+)\]%/e', '$this->resultGData[$key][\1]', $var); 

Note that this function uses Perl-compatible regular expressions instead of POSIX-extended regular expression.