Can't understand where in the code the problem?

When I started to create a website on LAN encountered such a problem=parse Error: syntax error, unexpected T_STRING, waiting ', ' or ';' in Z:\home\test...локальный\www \ indexor in line 5. don't know what the problem is please help!
here is the code
<?php 
echo "Test me <br>";
$memcache = new Memcache;
$memcache->connect('127.0.0.1', 11211);
echo ‘Memcached ver: ’ . $memcache->getVersion();
March 23rd 20 at 18:50
3 answers
March 23rd 20 at 18:52
echo <b>‘</b>Memcache ver:<b> ’</b> . $memcache->getVersion();

I think the matter in these quotes. Must be either 'these'or "these", but not‘such’
Yes, I changed those quotes, the problem with 5 row disappeared, but there was a problem with 3:
fatal error: class "Memcache" was not found in Z:\home\test...локальный\www \ indexnr line 3 - kamryn commented on March 23rd 20 at 18:55
@kamryn, installed, or connected extension. - ida commented on March 23rd 20 at 18:58
@kamryn, the Server on what? Windows or Linux? - ida commented on March 23rd 20 at 19:01
@ida, Windows 7 - kamryn commented on March 23rd 20 at 19:04
@kamryn, in php.ini locate the following line
;extension=php_memcache.dll
and remove point with zapatas, then restart your webserver - ida commented on March 23rd 20 at 19:07
@ida, It in the beginning and so not worth it - kamryn commented on March 23rd 20 at 19:10
March 23rd 20 at 18:54
above we have offered these quotes:
<?php 
echo "Test me <br>";
$memcache = new Memcache;
$memcache->connect('127.0.0.1', 11211);
echo "Memcache ver:" . $memcache->getVersion();
If you use this code you edited it appears another error:
fatal error: class "Memcache" was not found in Z:\home\test...локальный\www \ indexnr line 3 - kamryn commented on March 23rd 20 at 18:57
And memcache installed on the server? - Dangelo.Padberg commented on March 23rd 20 at 19:00
@kamryn,
phpinfo() view, then you will know whether you have installed memcache in General - chaim commented on March 23rd 20 at 19:03
March 23rd 20 at 18:56
You need to install and run the memcached service, then uncomment the line in php.ini

;extension=php_memcache.dll

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