[英]PHP - Forcing to NOT IGNORE same values in preg_match_all
我在使用preg_match_all
函數時遇到問題,默認情況下該函數會自動忽略相同的值。
碼:
$data = '<img src="images/smiles/lol.gif" alt="Laughing" border="0"> <img src="images/smiles/lol.gif" alt="Laughing" border="0"> <img src="images/smiles/lol.gif" alt="Laughing" border="0">';
preg_match_all('#<img src="images/smiles/(.+?)" alt=".+" border="0">#',$data,$out);
print_r($out);
結果:
Array
(
[0] => Array
(
[0] => <img src="images/smiles/lol.gif" alt="Laughing" border="0"> <img src="images/smiles/lol.gif" alt="Laughing" border="0"> <img src="images/smiles/lol.gif" alt="Laughing" border="0">
)
[1] => Array
(
[0] => lol.gif
)
)
我希望$out
變量是這樣的:
Array
(
[0] => Array
(
[0] => <img src="images/smiles/lol.gif" alt="Laughing" border="0">
[1] => <img src="images/smiles/lol.gif" alt="Laughing" border="0">
[2] => <img src="images/smiles/lol.gif" alt="Laughing" border="0">
)
[1] => Array
(
[0] => lol.gif
[1] => lol.gif
[2] => lol.gif
)
)
我應該添加或更改哪個標志或參數以具有上述輸出? 提前致謝!
當然,我在$data
變量中不僅只有這些HTML標記,還有一些其他標記和文本。
嘗試這個:
$data = '<img src="images/smiles/lol.gif" alt="Laughing" border="0"> <img src="images/smiles/lol.gif" alt="Laughing" border="0"> <img src="images/smiles/lol.gif" alt="Laughing" border="0">';
preg_match_all('#<img[^>]+src\\s*=\\s*[\'"]images/smiles/([^\'"]+)[\'"][^>]*>#i', $data, $out);
var_dump($out);
輸出為:
array
0 =>
array
0 => string '<img src="images/smiles/lol.gif" alt="Laughing" border="0">' (length=59)
1 => string '<img src="images/smiles/lol.gif" alt="Laughing" border="0">' (length=59)
2 => string '<img src="images/smiles/lol.gif" alt="Laughing" border="0">' (length=59)
1 =>
array
0 => string 'lol.gif' (length=7)
1 => string 'lol.gif' (length=7)
2 => string 'lol.gif' (length=7)
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