发现很多学PHP的同学常常因为找不到PHP在windows下对应的扩展而抓破头，因此分享一下PHP Windows所有可以找到的扩展索引资源：
PHP 5.2/5.3的Windows扩展索引站点：
在这里你可以找到诸如php_oci8.dll, php_memcache.dll, php_mongo.dll, php_apc.dll等常用的Windows扩展dll文件，也能找到一些相对冷门但是也很实用的php扩展，如php_oauth.dll, php_solr.dll等扩展
http://downloads.php.net/pierre/
PHP 5.3/5.4/5.5的Windows扩展索引站点：
那么你就需要到下面这个站点来找扩展了, 该站点能下载到支持php5.4/5.5的pecl扩展，
http://windows.php.net/downloads/pecl/releases/
支持的扩展文件索引：
php_amqp.dll
php_aop .dll
php_apc .dll
php_apcu .dll
php_automap .dll
php_bbcode .dll
php_bitset .dll
php_blenc .dll
php_couchbase .dll
php_dbx .dll
php_dio .dll
php_docblock .dll
php_doublemetaphone .dll
php_excel .dll
php_fann .dll
php_fribidi .dll
php_gender .dll
php_geoip .dll
php_haru .dll
php_htscanner .dll
php_http .dll
php_ibm_db2 .dll
php_igbinary .dll
php_imagick .dll
php_inclued .dll
php_jsmin .dll
php_jsonc .dll
php_judy .dll
php_libevent .dll
php_lzf .dll
php_mailparse .dll
php_memcache .dll
php_memoize .dll
php_memsession .dll
php_memtrack .dll
php_mongo .dll
php_msgpack .dll
php_mysqlnd_ms .dll
php_mysqlnd_qc .dll
php_oauth .dll
php_oci8 .dll
php_opcache .dll
php_operator .dll
php_pdflib .dll
php_pdo_4d .dll
php_pdo_ibm .dll
php_pdo_informix .dll
php_pdo_sqlanywhere .dll
php_pdo_sqlsrv .dll
php_pthreads .dll
php_radius .dll
php_rar .dll
php_riak .dll
php_scream .dll
php_solr .dll
php_sphinx .dll
php_spl_types .dll
php_sqlsrv .dll
php_ssh2 .dll
php_stats .dll
php_stem .dll
php_stomp .dll
php_taint .dll
php_trader .dll
php_translit .dll
php_txforward .dll
php_uploadprogress .dll
php_uri_template .dll
php_varnish .dll
php_vld .dll
php_weakref .dll
php_win32ps .dll
php_win32service .dll
php_wincache .dll
php_xdebug .dll
php_xdiff .dll
php_xhprof .dll
php_xrange .dll
php_xslcache .dll
php_yaf .dll
php_yaml .dll
php_zip .dll
php_zmq .dll
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