preg_split在PHP中有两个分隔符

Question

如何合并preg_split中的两个分隔符？例如：

$str = "this is a test , and more"; 
$array = preg_split('/(|,)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE); 
print_r($array); 

会产生一个数组作为

Array 
(
    [0] => this 
    [1] => 
    [2] => is 
    [3] => 
    [4] => a 
    [5] => 
    [6] => test 
    [7] => 
    [8] => 
    [9] => , 
    [10] => 
    [11] => 
    [12] => and 
    [13] => 
    [14] => more 
) 

，但我想

Array 
(
    [0] => this 
    [1] => 
    [2] => is 
    [3] => 
    [4] => a 
    [5] => 
    [6] => test 
    [7] => , 
    [8] => and 
    [9] => 
    [10] => more 
) 

其实，我想在两个分隔符是邻居合并数组元素。换句话说，如果下一个部分是第二个分隔符，则忽略第一个分隔符。

Answer 1

尝试使用字符类：/[ ,]+/

的+是一个量词，意思是“1个或多个”

Answer 2

怎么样确保该情况不会在第一时间发生：

<?php 
    $str = "this is a test , and more"; 
    $str=preg_replace('/ *, */',',',$str); 
    $array = preg_split('/(|,)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE); 
    print_r($array); 
?> 

Array 
(
    [0] => this 
    [1] => 
    [2] => is 
    [3] => 
    [4] => a 
    [5] => 
    [6] => test 
    [7] => , 
    [8] => and 
    [9] => 
    [10] => more 
) 

Answer 3

使用/([, ]+)/它的工作原理。见codepad