Help with Regular Expression In PHP

Question

I want to get an array of the following types of strings:

data {string1} {string2} {string3} data

I want to get an array whose values are string1/string2/strin3. How can I do this?

Answer 1

One way of doing it would be exploding it:

$string  = "data string1 string2 string3 data";
$parts = explode(" ", $string);
echo $parts[1]; // string1
echo $parts[2]; // string2
echo $parts[3]; // string3

PHP Explode

But if you could provide some more information about your data it would be easier to come up with a better approch.

Answer 2

You could try:

$data = '';
$matches = array();
if (preg_match_all('#\\{([^}]*)\\}#', $string, $matches, PREG_PATTERN_ORDER)) {
    $data = implode('/', $matches[1]);
}
echo $data;

Answer 3

$str = "data {string1} {string2} {string3} data";
preg_match_all('/{\w*}/',$str, $matches);
echo $matches[0][0]; // {string1}
echo $matches[0][1]; // {string2}
echo $matches[0][2]; // {string3}

PHP preg_match_all

Answer 4

one-liner w/o capturing parentheses, the string resides in $stuff:

$arr = preg_match_all('/(?<={)[^}]+(?=})/', $stuff, $m) ? $m[0] : Array();

result:

foreach($arr as $a) echo "$a\n";

string1
string2
string3

Regards

rbo