PHP剪切特定字符串

hy I want grab every filename for example :
I have data

01.jpg02.jpg03.jpg10599335_899600036724556_4656814811345726851_n.jpg11693824_1051832718167953_6310308040295800037_n.jpg11709788_1051835281501030_8503525152567309473_n.jpg12042832_1103685106316047_3711793359145824637_n.jpg

I'm try like this but not working for me

$str = $_POST['name'];
print_r (explode(".jpg", $str));
foreach ($str as $key => $value) {
echo $value.'<br>';
}

The solution using preg_match_all function:

$str = "01.jpg02.jpg03.jpg10599335_899600036724556_4656814811345726851_n.jpg11693824_1051832718167953_6310308040295800037_n.jpg11709788_1051835281501030_8503525152567309473_n.jpg12042832_1103685106316047_3711793359145824637_n.jpg";

preg_match_all("/(?<=\.jpg)?\w+\.jpg/", $str, $matches);

print_r($matches[0]);

The output:

Array
(
    [0] => 01.jpg
    [1] => 02.jpg
    [2] => 03.jpg
    [3] => 10599335_899600036724556_4656814811345726851_n.jpg
    [4] => 11693824_1051832718167953_6310308040295800037_n.jpg
    [5] => 11709788_1051835281501030_8503525152567309473_n.jpg
    [6] => 12042832_1103685106316047_3711793359145824637_n.jpg
)

You can use this lookbehind regex in preg_match_all:

/(?<=^|\.jpg)\w+\.jpg/

Lookbehind asserts that our match has a preceding .jpg or line start.

RegEx Demo

Code:

$re = '/(?<=^|\.jpg)\w+\.jpg/m'; 

preg_match_all($re, $input, $matches);

print_r($matches[0]);

Code Demo

The explode takes the delimited value off so you would need to re-append it.

$filenames = explode('.jpg', '01.jpg02.jpg03.jpg10599335_899600036724556_4656814811345726851_n.jpg11693824_1051832718167953_6310308040295800037_n.jpg11709788_1051835281501030_8503525152567309473_n.jpg12042832_1103685106316047_3711793359145824637_n.jpg');
foreach($filenames as $file) {
    if(!empty($file)) {
         echo $file . ".jpg
";
    }
}

https://eval.in/596532

A regex approach that I think would work is:

(.*?\.jpg)

Regex demo: https://regex101.com/r/gR7rC5/1

PHP:

preg_match_all('/(.*?\.jpg)/', '01.jpg02.jpg03.jpg10599335_899600036724556_4656814811345726851_n.jpg11693824_1051832718167953_6310308040295800037_n.jpg11709788_1051835281501030_8503525152567309473_n.jpg12042832_1103685106316047_3711793359145824637_n.jpg', $filenames);
foreach($filenames[1] as $file) {
    echo $file . "
";
}

Demo: https://eval.in/596530

preg_match_all("/(.*?\.jpg)/", $str, $out);
Var_dump($out[1]);

Click preg_match_all
http://www.phpliveregex.com/p/gcR