我想使用正则表达式从字符串中提取字符串的一部分

Question

I have the variable $state="Mississippi Alabama Texas Massachusetts Kansas". I wanna find the word which contains xas in the end and store this word in a array.I am trying for it, but no results:

<?php
$states="Mississippi Alabama Texas Massachusetss Kansas";
$str="/xa$/";
$string="";
$ee=preg_match( "/xas$/",$str,$matches);
echo $ee;
echo $matches;

Answer 1

You can use word break \\b instead end-of-string ( $ ) and you should also include the other characters of the word you try to match (with \\w* ):

$states="Mississippi Alabama Texas Massachusetss Kansas";
preg_match("/\w*xas\b/", $states, $matches);
print_r($matches);

output:

Array( [0] => "Texas" )