[英]A regex expression, that works fine on Apache, but fails on nginx
[英]Regex Expression works fine in online testers, but not working on my page
所以我正在讀取一個css文件,我想從中獲取一些數據。 我目前僅將數據縮減為:
font-family: "Verdana";
font-size: 14px;
color: #000000;
為了純粹獲取我需要的數據(即Verdana,14和#000000),我創建了以下PHP代碼:
foreach($tmp as $tmpstr){
if(strpos($tmpstr, "font-family")){
$tmpres = array();
preg_match('/\"(.*?)\"/', $tmpstr, $tmpres);
$returnData["website"]["font-family"] = $tmpres[1];
} else if(strpos($tmpstr, "font-size")){
$tmpres2 = array();
preg_match_all('/\:\s(.*?)px\;/', $tmpstr, $tmpres2);
$returnData["website"]["font-size"] = $tmpres2[1];
} else if(strpos($tmpstr, "color")){
$tmpres3 = array();
preg_match_all('/color\:\s(.*?)\;/', $tmpstr, $tmpres3);
$returnData["website"]["font-color"] = $tmpres3[1];
}
}
我知道它尚未進行優化,但原因是它無法正常工作。 獲得Verdana的第一個表達式'/\\"(.*?)\\"/'
可以正常工作,而其他兩個'/\\:\\s(.*?)px\\;/'
( '/\\:\\s(.*?)px\\;/'
獲得字體大小, /color\\:\\s(.*?)\\;/
來獲取字體顏色),而在在線測試儀中進行測試似乎確實可行。 誰能告訴我我在做什么錯?
謝謝!
檢查這個例子
$tmp = array(
'font-family: "Verdana";',
'font-size: 14px;',
'color: #000000;'
);
foreach($tmp as $tmpstr)
{
if (false !== strpos($tmpstr, "font-family"))
{
preg_match('/:[ ]*"(.*)"/', $tmpstr, $tmpres);
echo $tmpres[1];
}
else if (false !== strpos($tmpstr, "font-size"))
{
preg_match('/:[ ]*(\d*)px/', $tmpstr, $tmpres2);
echo $tmpres2[1];
}
else if (false !== strpos($tmpstr, "color"))
{
preg_match('/:[ ]*(.*);/', $tmpstr, $tmpres3);
echo $tmpres3[1];
}
echo '<br />';
}
結果:
Verdana
14
#000000
希望此解決方案有幫助!
嘗試這個:
$css = 'font-family: "Verdana";
font-size: 14px;
color: #000000;'
preg_match_all('(?P<key>.+?)\:\s*(?P<value>.+?)\;', $css, $result, PREG_SET_ORDER);
輸出:
Array
(
[0] => Array
(
[0] => font-family: "Verdana";
[key] => font-family
[1] => font-family
[value] => "Verdana"
[2] => "Verdana"
)
[1] => Array
(
[0] => font-size: 14px;
[key] => font-size
[1] => font-size
[value] => 14px
[2] => 14px
)
[2] => Array
(
[0] => color: #000000;
[key] => color
[1] => color
[value] => #000000
[2] => #000000
)
)
然后,做一個foreach循環來清理輸出應該是一件小事:
$data = array()
foreach($result as $r){
$data[$r['key']] = $r['value'];
}
輸出:
array
(
[font-family] => "Verdana",
[font-size] => 14px,
[color] => #000000
)
附帶說明一下,您可以將其擴展到整個文件:
/(?P<selectors>.*?)\s*\{|(?P<key>.+?)\:\s*(?P<value>.+?)\;/
#id, and some class
{
font-family: "Verdana";
font-size: 14px;
color: #000000;
}
#id2, and some class1
{ ..... and so on.
輸出:
array
(
[0] => Array
(
[0] => #id, and some class
{
[selectors] => #id, and some class ///you may want to post process this and split on comma etc.
[1] => #id, and some class
)
[1] => Array
(
[0] => font-family: "Verdana";
[selectors] =>
[1] =>
[key] => font-family
[2] => font-family
[value] => "Verdana"
[3] => "Verdana"
)
[2] => Array
(
[0] => font-size: 14px;
[selectors] =>
[1] =>
[key] => font-size
[2] => font-size
[value] => 14px
[3] => 14px
)
[3] => Array
(
[0] => color: #000000;
[selectors] =>
[1] =>
[key] => color
[2] => color
[value] => #000000
[3] => #000000
)
[4] => Array
(
[0] => #id2, and some class1
{
[selectors] => #id2, and some class1
[1] => #id2, and some class1
) .....
更新,對不起,您將要檢查是否為空(以前我有isset),因為我看到每個變量中都設置了$ r ['selectors']。 然后,您可以通過其樣式選擇器對每個樣式塊進行子數組化,並解析為您的hart內容。 您知道了,但是如果您需要幫助,請詢問(在這種情況下,最好刪除PRET_SET_ORDER)...
這將是我建議的CSS文件的最終結構。
array(
selector => array( color => 'bla', font => blabla )
selector2 => array( .....
)
我認為preg_match_all並沒有得到需要的關注,如果您不熟悉它,可以在php doc http://www.php.net/manual/zh/上查看,它對於此類事情可能確實有用。 function.preg匹配,all.php
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