Replace templates in strings by array values

Question

I have a string, that can has simple templates. And I have an array with values for replacemenet. Currently I am doing it with loop. But I want to change it to preg_replace. Can you help me?

Example:

$values = array(
    'id'   => 120,
    'name' => 'Jim'
);
$string = 'Hello <!name!>. Your ID is <!id!>';
$output = preg_replace(...); // Hello Jim. Your ID is 120

Also preg_replace should work not only with id and name, but with any other keys. Thanks.

I would probably use preg_replace_callback and a closure.

Felix Kling
– Felix Kling

2012-03-20 09:34:21 +00:00
Commented Mar 20, 2012 at 9:34 — Felix Kling
– Felix Kling, Commented Mar 20, 2012 at 9:34

Andreas Wong · Accepted Answer · 2012-03-20 09:39:13Z

3

Something like the following?

<?php
$values = array(
    'id'   => 120,
    'name' => 'Jim'
);
$string = 'Hello <!name!>. Your ID is <!id!>';

function foo($val) {
        return '/<!' . $val . '!>/';
}

echo preg_replace(array_map('foo', array_keys($values)), array_values($values), $string);

If the whole thing is in a class:

class Template {
        static function bar($val) {
                return '/<!' . $val . '!>/';
        }

        function render($values, $string) {
                echo preg_replace(array_map(array('Template', 'bar'), array_keys($values)), array_values($values), $string);
        }
}

$values = array(
    'id'   => 120,
    'name' => 'Jim'
);
$string = 'Hello <!name!>. Your ID is <!id!>';
$T = new Template();
$T->render($values, $string);

edited Mar 20, 2012 at 9:39

answered Mar 20, 2012 at 9:30

Andreas Wong

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2 Comments

Alex Pliutau Over a year ago

Thanks. Good thing. Can I use class method instead of function for array_map()?

Christoph Winkler Over a year ago

preg_replace_callback() is an alternative.

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