如何排除 php 正则表达式中的大小写

Question

我正在尝试捕获存在冒号的特定数据。我试过这个：

preg_match_all("/^(.+):(.+)/im", $input_lines, $output_array);

在此输入数据上

last_name, first_name
bjorge philip: hello world    
bjorge:world
kardashian, kim
some http://hi.com ok
jim https://hey.com yes
same http://www.vim.com:2018 why
it's about 20/08/2018 1:23 pm
time is 01:20:24 now
capture my name : my name is micky mouse
mercury, freddie
I need to be:
captured
  capture me :    
 if you can
 where is  : freddie
freddie is not:
 home

我需要捕获 bjorge philip: hello world、bjorge:world、I need to be: captured、capture me : if you can、where is : freddie、freddie is not: home 和 capture my name : my name is micky mouse 行并排除任何包含时间或 URL

的行

Answer 1

<?php
$input_lines="last_name, first_name
bjorge philip: hello world    
bjorge:world
kardashian, kim
some http://hi.com ok
jim https://hey.com yes
same http://www.vim.com:2018 why
it's about 20/08/2018 1:23 pm
time is 01:20:24 now
capture my name : my name is micky mouse
mercury, freddie
I need to be:
captured
  capture me :    
 if you can
 where is  : freddie
freddie is not:
 home ";

preg_match_all("/^|\n(?![^:]*$|.*?https?:|.*\d:\d+)(.*?:\s*\r?\n.*|.*?:\s?.+)/",$input_lines,$output_array);
// \r? can be omitted from regex depending on system

foreach($output_array[0] as $output){
    echo $output,"<br>";
}

正则表达式模式细分：

^|\n                     #start string from beginning of $input_lines or after any newline
    (?!                  #begin negative lookahead group
        [^:]*$           #ignore lines with no colon
        |                #OR
        .*?https?:       #ignore lines with http: or https:
        |                #OR
        .*\d:\d          #ignore lines with digit colon digit
    )                    #end negative lookahead group
    (                    #begin capture group
        .*?:\s*\r?\n.*   #capture 2 lines if 1st line has a colon then 0 or more
                         # spaces with no non-white characters before the newline
        |                #OR
        .*?:\s?.+        #capture 1 line when it contains a colon followed by
                         # 0 or 1 space then 1 or more non-white characters
    )                    #end capture group

这个returns：

bjorge philip: hello world 
bjorge:world 
capture my name : my name is micky mouse 
I need to be: captured 
capture me : if you can 
where is : freddie 
freddie is not: home

我花了相当多的时间为您编写这个解决方案。如果样本集没有进一步的扩展，我希望它能赢得你的认可。

如何排除 php 正则表达式中的大小写

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