在php中使用正則表達式拆分字符串

Question

我是php的初學者，我有這樣的字符串：

$test = http://localhost/biochem/wp-content/uploads//godzilla-article2.jpghttp://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg

我想將字符串拆分為這樣的數組：

Array(
[0] => http://localhost/biochem/wp-content/uploads//godzilla-article2.jpg
[1] => http://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg
)

我該怎么辦？

Answer 1

$test = 'http://localhost/biochem/wp-content/uploads//godzilla-article2.jpghttp://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg';
$testurls = explode('http://',$test);
foreach ($testurls as $testurl) {
    if (strlen($testurl)) // because the first item in the array is an empty string
    $urls[] = 'http://'. $testurl;
}
print_r($urls);

Answer 2

你問了一個正則表達式的解決方案，所以你去......

$test = "http://localhost/biochem/wp-content/uploads//godzilla-article2.jpghttp://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg";
preg_match_all('/(http:\/\/.+?\.jpg)/',$test,$matches);
print_r($matches[0]);

該表達式查找字符串的部分，以http://開頭，以.jpg結尾，中間有任何內容。 這會完全按照請求拆分您的字符串。

輸出：

Array
(
    [0] => http://localhost/biochem/wp-content/uploads//godzilla-article2.jpg
    [1] => http://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg
)

Answer 3

你可以拆分它們，如果它們總是像這個vith substr（）函數引用： http ：//php.net/manual/en/function.substr.php但是如果它們在長度上是動態的。 你需要得到一個; 或者在第二個“http：//”之前不太可能使用的任何其他標志，然后使用explode函數參考： http ： //php.net/manual/en/function.explode.php $string = "http://something.com/;http://something2.com"; $a = explode(";",$string); $string = "http://something.com/;http://something2.com"; $a = explode(";",$string);

Answer 4

請嘗試以下方法：

<?php
$temp = explode('http://', $test);
foreach($temp as $url) {
    $urls[] = 'http://' . $url;
}
print_r($urls);
?>

Answer 5

$test = 'http://localhost/biochem/wp-content/uploads//godzilla-article2.jpghttp://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jp';

array_slice(
    array_map(
        function($item) { return "http://" . $item;}, 
        explode("http://",  $test)), 
    1);

Answer 6

為了通過正則表達式回答這個問題，我想你想要這樣的東西：

$test = "http://localhost/biochem/wp-content/uploads//godzilla-article2.jpghttp://localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg";
    $keywords = preg_split("/.http:\/\//",$test);
    print_r($keywords);

它會返回您需要的東西：

Array
(
 [0] => http://localhost/biochem/wp-content/uploads//godzilla-article2.jp
 [1] => localhost/biochem/wp-content/uploads/life-goes-on-wpcf_300x111.jpg
)