php：mysql_connect（）失败，没有错误消息

Question

I am running a simple test script from the command line on CentOS 5.6 with the PHP package installed from PHP 5.3 on CentOS/RHEL 5.6.

PHP runs fine in all other cases but when I hit mysql_connect() it fails without error.

If I run

$ php -m

I am not seeing MySQL as an installed module.

However I have added extension=mysql.so to my php.ini and rebooted.

Output of 'rpm -qa | grep php'

php-common-5.3.10-1.w5
php-5.3.10-1.w5
php-cli-5.3.10-1.w5

Output of 'yum install php-mysql'

  --> Missing Dependency: php-common = 5.1.6-27.el5_7.5 is needed by package php-mysql-5.1.6-27.el5_7.5.x86_64 (updates)
php-pdo-5.1.6-27.el5_7.5.x86_64 from updates has depsolving problems
  --> Missing Dependency: php-common = 5.1.6-27.el5_7.5 is needed by package php-pdo-5.1.6-27.el5_7.5.x86_64 (updates)
Error: Missing Dependency: php-common = 5.1.6-27.el5_7.5 is needed by package php-pdo-5.1.6-27.el5_7.5.x86_64 (updates)
Error: Missing Dependency: php-common = 5.1.6-27.el5_7.5 is needed by package php-mysql-5.1.6-27.el5_7.5.x86_64 (updates)
 You could try using --skip-broken to work around the problem
 You could try running: package-cleanup --problems
                        package-cleanup --dupes
                        rpm -Va --nofiles --nodigest
The program package-cleanup is found in the yum-utils package.

Answer 1

 I am not seeing MySQL as an installed module.

Did you install it?

# yum install php-mysql

(from the same repo you installed php from).

EDIT:

run this:

yum --enablerepo=webtatic install php-mysql

this tells yum to get the packages from webtatic repository (in addition to system configured repositories). If you want webtatic among system enabled repositories, run:

 yum --enablerepo=webtatic install  webtatic-release