基于字符串返回字符串段

使用此功能:

function get_string_between($string, $start, $end)
{
    $ini = strpos($string,$start);
    if ($ini == 0)
        return "";
    $ini += strlen($start);
    $len = strpos($string,$end,$ini) - $ini;
    return substr($string,$ini,$len);
}

$input = 'here is a nice string that is being used as an example';
$output = get_string_between($input, 'a', 'that');
echo $output;  //outputs: nice string

也可以将正则表达式用于 preg_match :

<?php

function get_string_between($string,$start,$end) {
    preg_match("/\b$start\b\s(.*?)\s\b$end\b/",$string,$matches);
    return $matches[1];
}

$str = "here is a nice string that is being used as an example";
print get_string_between($str,"a","that")."\n";

?>