php.ini
;extension=php_bz2.dllextension=php_curl.dll;extension=php_dba.dll;extension=php_dbase.dllextension=php_exif.dll;extension=php_fdf.dllextension=php_gd2.dll;extension=php_gettext.dll;extension=php_gmp.dll;extension=php_ifx.dll;extension=php_imap.dll;extension=php_interbase.dll;extension=php_ldap.dllextension=php_mbstring.dll;extension=php_mcrypt.dll;extension=php_mhash.dll;extension=php_mime_magic.dll;extension=php_ming.dll;extension=php_msql.dll;extension=php_mssql.dllextension=php_mysql.dllextension=php_mysqli.dllextension=php_oci8.dll;extension=php_openssl.dllextension=php_pdo.dllextension=php_pdo_firebird.dllextension=php_pdo_mssql.dllextension=php_pdo_mysql.dllextension=php_pdo_oci.dllextension=php_pdo_oci8.dllextension=php_pdo_odbc.dllextension=php_pdo_pgsql.dllextension=php_pdo_sqlite.dll;extension=php_pgsql.dll;extension=php_pspell.dll;extension=php_shmop.dll;extension=php_snmp.dll;extension=php_soap.dllextension=php_sockets.dllextension=php_sqlite.dll;extension=php_sybase_ct.dll;extension=php_tidy.dll;extension=php_xmlrpc.dll;extension=php_xsl.dll;extension=php_zip.dll

php代码
new pdo(oci:dbname=//192.168.175.40:1521/orcl,demo,demo);

phpinfo
错误
pdo_oci_handle_factory: ora-12514: tns: 监听程序当前无法识别连接描述符中请求的服务 (ext\pdo_oci\oci_driver.c:581)222

回复内容： php.ini
;extension=php_bz2.dllextension=php_curl.dll;extension=php_dba.dll;extension=php_dbase.dllextension=php_exif.dll;extension=php_fdf.dllextension=php_gd2.dll;extension=php_gettext.dll;extension=php_gmp.dll;extension=php_ifx.dll;extension=php_imap.dll;extension=php_interbase.dll;extension=php_ldap.dllextension=php_mbstring.dll;extension=php_mcrypt.dll;extension=php_mhash.dll;extension=php_mime_magic.dll;extension=php_ming.dll;extension=php_msql.dll;extension=php_mssql.dllextension=php_mysql.dllextension=php_mysqli.dllextension=php_oci8.dll;extension=php_openssl.dllextension=php_pdo.dllextension=php_pdo_firebird.dllextension=php_pdo_mssql.dllextension=php_pdo_mysql.dllextension=php_pdo_oci.dllextension=php_pdo_oci8.dllextension=php_pdo_odbc.dllextension=php_pdo_pgsql.dllextension=php_pdo_sqlite.dll;extension=php_pgsql.dll;extension=php_pspell.dll;extension=php_shmop.dll;extension=php_snmp.dll;extension=php_soap.dllextension=php_sockets.dllextension=php_sqlite.dll;extension=php_sybase_ct.dll;extension=php_tidy.dll;extension=php_xmlrpc.dll;extension=php_xsl.dll;extension=php_zip.dll

php代码
new pdo(oci:dbname=//192.168.175.40:1521/orcl,demo,demo);

phpinfo
错误
pdo_oci_handle_factory: ora-12514: tns: 监听程序当前无法识别连接描述符中请求的服务 (ext\pdo_oci\oci_driver.c:581)222

请先安装oracle 的客户端，能够用客户端访问oracle了，才能够加载
我php 连接oracle，第一次非常慢，30~45秒，之后就非常快。
这个楼主是如何解决的。