Php 正则表达式并没有拆分这句话
我使用下面的代码来分割句子,它工作得很好,但是在下面的例子中,它只是抛出了一个错误。知道为什么它不能得到这个句子吗Php 正则表达式并没有拆分这句话,php,regex,Php,Regex,我使用下面的代码来分割句子,它工作得很好,但是在下面的例子中,它只是抛出了一个错误。知道为什么它不能得到这个句子吗 $re = '/# Split sentences on whitespace between them. (?<= # Begin positive lookbehind. [.!?:] # Either an end of sentence punct, | [.!?:][\'"]
$re = '/# Split sentences on whitespace between them.
(?<= # Begin positive lookbehind.
[.!?:] # Either an end of sentence punct,
| [.!?:][\'"]
| [\r\t\n] # or end of sentence punct and quote.
) # End positive lookbehind.
(?<! # Begin negative lookbehind.
Mr\. # Skip either "Mr."
| Mrs\. # or "Mrs.",
| Ms\. # or "Ms.",
| Jr\. # or "Jr.",
| Dr\. # or "Dr.",
| Prof\. # or "Prof.",
| U\.S\.A\.
| Sr\. # or "Sr.",
| T\.V\.A\. # or "T.V.A.",
| a\.m\. # or "a.m.",
| p\.m\. # or "p.m.",
| a€¢\.
| :\.
| ?\.
# or... (you get the idea).
) # End negative lookbehind.
\s+ # Split on whitespace between sentences.
/ix';
$english = "Support services, such as help with transportation or clothing, may also be available. How do I receive these services?";
$english = preg_split($re, $row['english'], -1, PREG_SPLIT_NO_EMPTY);
print_r($english);
??是一个特殊角色,您需要对其进行转义:
$re = '/# Split sentences on whitespace between them.
(?<= # Begin positive lookbehind.
[.!?:] # Either an end of sentence punct,
| [.!?:][\'"]
| [\r\t\n] # or end of sentence punct and quote.
) # End positive lookbehind.
(?<! # Begin negative lookbehind.
Mr\. # Skip either "Mr."
| Mrs\. # or "Mrs.",
| Ms\. # or "Ms.",
| Jr\. # or "Jr.",
| Dr\. # or "Dr.",
| Prof\. # or "Prof.",
| U\.S\.A\.
| Sr\. # or "Sr.",
| T\.V\.A\. # or "T.V.A.",
| a\.m\. # or "a.m.",
| p\.m\. # or "p.m.",
| a€¢\.
| :\.
| \?\. # <=== over here.
# or... (you get the idea).
) # End negative lookbehind.
\s+ # Split on whitespace between sentences.
/ix';
$re='/#用空格分隔句子。
(?丹尼尔抓得好。
说有一个量词,但没有量词。
既然你已经把它扩展了,就没有什么可以量化的了。如果是文字,就应该转义
# Split sentences on whitespace between them.
(?<= # Begin positive lookbehind.
[.!?:] # Either an end of sentence punct,
| [.!?:] ['"]
| [\r\t\n] # or end of sentence punct and quote.
) # End positive lookbehind.
(?<! # Begin negative lookbehind.
Mr\. # Skip either "Mr."
| Mrs\. # or "Mrs.",
| Ms\. # or "Ms.",
| Jr\. # or "Jr.",
| Dr\. # or "Dr.",
| Prof\. # or "Prof.",
| U\.S\.A\.
| Sr\. # or "Sr.",
| T\.V\.A\. # or "T.V.A.",
| a\.m\. # or "a.m.",
| p\.m\. # or "p.m.",
| a€¢\.
| :\.
|
= ? <-- Quantifies nothing
\.
# or... (you get the idea).
) # End negative lookbehind.
\s+ # Split on whitespace between sentences.
#用空格分隔句子。
(?谢谢!在我使用的原始代码中,这不是一个。当我将它移动到一个新脚本时,它不知怎么地发生了变化。非常感谢,我在这个脚本上掉了很多头发。
# Split sentences on whitespace between them.
(?<= # Begin positive lookbehind.
[.!?:] # Either an end of sentence punct,
| [.!?:] ['"]
| [\r\t\n] # or end of sentence punct and quote.
) # End positive lookbehind.
(?<! # Begin negative lookbehind.
Mr\. # Skip either "Mr."
| Mrs\. # or "Mrs.",
| Ms\. # or "Ms.",
| Jr\. # or "Jr.",
| Dr\. # or "Dr.",
| Prof\. # or "Prof.",
| U\.S\.A\.
| Sr\. # or "Sr.",
| T\.V\.A\. # or "T.V.A.",
| a\.m\. # or "a.m.",
| p\.m\. # or "p.m.",
| a€¢\.
| :\.
|
= ? <-- Quantifies nothing
\.
# or... (you get the idea).
) # End negative lookbehind.
\s+ # Split on whitespace between sentences.