Question

I want to know how to replace some text in php string with like an include or something.

here is my example string: I have a string “bla bla bla bla {{ module:projects,id=1 }} bla bla bla bla”

I want to find {{ module:projects,id=1 }} and make it include(‘projects.php?id=1’); right where it is in the string.

how would i pull this off?

An alternative if i could do this but i cant get it to execute the php from the string would be “bla bla bla bla bla bla”

Answer 1

with preg_replace:

$string = '{{ module:projects,id=1 }}';
$string = preg_replace('/{{ module:([^,]+),id=([0-9]+) }}/', 'include(\'$1.php?id=$2\')', $string);
// $string == include('projects.php?id=1')

Note: you can’t actually include files with query strings on the end. PHP looks for file named ‘projects.php?id=1’.

To get the file and actually include it:

preg_match_all('/{{ module:([^,]+),id=([0-9]+) }}/', $string, $matches);
foreach ($matches[1] as $key => $filename) {
    // set $id before including the file. you could optionally set $_GET['id'].
    $id = $matches[2][$key];
    include($filename . '.php');
}

To support multiple parameters. Similar to Matmarbon’s, but is more compact, doesn’t assume parameter values will conform to \w, doesn’t escape values, but also has less room for variations in spacing (/s*).

preg_match_all('/{{ module:([^,]+)((,[^=]+=[^,}]+)*) }}/', $string, $matches);
foreach ($matches[1] as $key => $filename) {
    foreach (explode(',', trim($matches[2][$key], ', ')) as $vars) {
        list($k, $v) = explode('=', $vars);
        $_GET[$k] = $v;
    }
    // then this:
    include($filename . '.php');
    // or, to replace content:
    ob_start();
    include($filename . '.php');
    $contents = ob_get_contents();
    ob_end_clean();
    $string = str_replace($matches[0][$key], $contents, $string);
}