用于在PHP中提取图像路径的正则表达式
我想从PHP中给定的用于在PHP中提取图像路径的正则表达式,php,regex,preg-match-all,regex-group,regex-greedy,Php,Regex,Preg Match All,Regex Group,Regex Greedy,我想从PHP中给定的img标记中提取特定的模式匹配URL 输入 如果我改为.png,那么上面的一个提取仅限于。jpg意味着它提取jpg,如何提取png或jpg,如果在给定的$img_tag?中存在,我相信有更简单的方法来解决您的问题。这只是继续您原来的方法,使用括号()对以下内容进行分组: $img_tag = '<img class="ezlazyload aligncenter size-large wp-image-473313" src="data:image/svg+xml,%3
img
标记中提取特定的模式匹配URL
输入
如果我改为
.png
,那么上面的一个提取仅限于。jpg
意味着它提取jpg,如何提取png或jpg,如果在给定的$img_tag
?中存在,我相信有更简单的方法来解决您的问题。这只是继续您原来的方法,使用括号()
对以下内容进行分组:
$img_tag = '<img class="ezlazyload aligncenter size-large wp-image-473313" src="data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22459%22%20height%3D%22600%22%3E%3C%2Fsvg%3E" alt="shiny-ash-hat-pikachu" width="459" height="600" data-ezsrc="https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.png" data-ezsrcset="https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.PNG 459w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-138x180.jpg 138w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-314x410.JPEG 314w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu.jpeg 640w">';
preg_match_all('/(https:\/\/cdn.gamerant.com\/wp-content\/uploads\/)(.+?\.)(png|jpg|jpeg|JPEG|PNG|JPG)/s', $img_tag, $matches1, PREG_PATTERN_ORDER);
var_dump($matches1);
期望输出
太棒了,最好的答案
preg_match_all('/"(https:\/\/cdn.gamerant.com\/wp-content\/uploads\/.+?\.png)"/s', $img_tag, $matches1, PREG_PATTERN_ORDER);
$img_tag = '<img class="ezlazyload aligncenter size-large wp-image-473313" src="data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22459%22%20height%3D%22600%22%3E%3C%2Fsvg%3E" alt="shiny-ash-hat-pikachu" width="459" height="600" data-ezsrc="https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.png" data-ezsrcset="https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.PNG 459w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-138x180.jpg 138w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-314x410.JPEG 314w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu.jpeg 640w">';
preg_match_all('/(https:\/\/cdn.gamerant.com\/wp-content\/uploads\/)(.+?\.)(png|jpg|jpeg|JPEG|PNG|JPG)/s', $img_tag, $matches1, PREG_PATTERN_ORDER);
var_dump($matches1);
array(4) {
[0]=>
array(5) {
[0]=>
string(77) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.png"
[1]=>
string(77) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.PNG"
[2]=>
string(77) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-138x180.jpg"
[3]=>
string(78) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-314x410.JPEG"
[4]=>
string(70) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu.jpeg"
}
[1]=>
array(5) {
[0]=>
string(44) "https://cdn.gamerant.com/wp-content/uploads/"
[1]=>
string(44) "https://cdn.gamerant.com/wp-content/uploads/"
[2]=>
string(44) "https://cdn.gamerant.com/wp-content/uploads/"
[3]=>
string(44) "https://cdn.gamerant.com/wp-content/uploads/"
[4]=>
string(44) "https://cdn.gamerant.com/wp-content/uploads/"
}
[2]=>
array(5) {
[0]=>
string(30) "shiny-ash-hat-pikachu-459x600."
[1]=>
string(30) "shiny-ash-hat-pikachu-459x600."
[2]=>
string(30) "shiny-ash-hat-pikachu-138x180."
[3]=>
string(30) "shiny-ash-hat-pikachu-314x410."
[4]=>
string(22) "shiny-ash-hat-pikachu."
}
[3]=>
array(5) {
[0]=>
string(3) "png"
[1]=>
string(3) "PNG"
[2]=>
string(3) "jpg"
[3]=>
string(4) "JPEG"
[4]=>
string(4) "jpeg"
}
}
$img_tag = '<img class="ezlazyload aligncenter size-large wp-image-473313" src="data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22459%22%20height%3D%22600%22%3E%3C%2Fsvg%3E" alt="shiny-ash-hat-pikachu" width="459" height="600" data-ezsrc="https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.png" data-ezsrcset="https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.PNG 459w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-138x180.jpg 138w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-314x410.JPEG 314w, https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu.jpeg 640w">';
preg_match_all('/(https:\/\/cdn.gamerant.com\/wp-content\/uploads\/)(.+?\.)(png|jpg|jpeg|JPEG|PNG|JPG)/s', $img_tag, $matches1, PREG_PATTERN_ORDER);
var_dump($matches1[0]);
array(5) {
[0]=>
string(77) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.png"
[1]=>
string(77) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-459x600.PNG"
[2]=>
string(77) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-138x180.jpg"
[3]=>
string(78) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu-314x410.JPEG"
[4]=>
string(70) "https://cdn.gamerant.com/wp-content/uploads/shiny-ash-hat-pikachu.jpeg"
}