This works in devenv_3974. Please retest when INT is >= 3974. Thanks!

Tested this bug in INT(devenv_3975),still could not create drupal quickstart with zend-5.6,but could create drupal quickstart with zend-5.6 in devenv-stage_546.

Result:
[wsun@dhcp-8-229 test]$ rhc app create drupal zend-5 mysql-5 cron --from-code=git://github.com/openshift/drupal-quickstart.git --server int.openshift.redhat.com -l wsun+3 
Using zend-5.6 (Zend Server 5.6) for 'zend-5'
Using mysql-5.1 (MySQL 5.1) for 'mysql-5'
Using cron-1.4 (Cron 1.4) for 'cron'

Application Options
-------------------
  Domain:      wsun3int
  Cartridges:  zend-5.6, mysql-5.1, cron-1.4
  Source Code: git://github.com/openshift/drupal-quickstart.git
  Gear Size:   default
  Scaling:     no

Creating application 'drupal' ... 
The initial build for the application failed: Shell command '/sbin/runuser -s /bin/sh 52731b8603ef64802a000381 -c "exec
/usr/bin/runcon 'unconfined_u:system_r:openshift_t:s0:c3,c106' /bin/sh -c \"gear postreceive --init >>
/tmp/initial-build.log 2>&1\""' returned an error. rc=255

.Last 10 kB of build output:
Stopping MySQL cartridge
Stopping Zend Server Console
lighttpd is not running
Stopping Zend Server JobQueue daemon
jqd is not running
Stopping Apache
Syntax error on line 2 of /var/lib/openshift/52731b8603ef64802a000381/zend/configuration/etc/conf.d/openshift.conf:
DocumentRoot must be a directory
httpd (no pid file) not running
Stopping Zend Server Monitor node
monitor is not running
Stopping Zend Server Deployment daemon
zdd is not running
Stopping Cron cartridge
Building git ref 'master', commit 8d24734
Checking pear: pear.drush.org/drush

PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/bcmath.so' -
/usr/local/zend/lib/php/20090626/bcmath.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/bz2.so' -
/usr/local/zend/lib/php/20090626/bz2.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/calendar.so' -
/usr/local/zend/lib/php/20090626/calendar.so: cannot open shared object file: No such file or directory in Unknown on line
0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/ctype.so' -
/usr/local/zend/lib/php/20090626/ctype.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/curl.so' -
/usr/local/zend/lib/php/20090626/curl.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/exif.so' -
/usr/local/zend/lib/php/20090626/exif.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/fileinfo.so' -
/usr/local/zend/lib/php/20090626/fileinfo.so: cannot open shared object file: No such file or directory in Unknown on line
0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/ftp.so' -
/usr/local/zend/lib/php/20090626/ftp.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/gd.so' -
/usr/local/zend/lib/php/20090626/gd.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/gettext.so' -
/usr/local/zend/lib/php/20090626/gettext.so: cannot open shared object file: No such file or directory in Unknown on line
0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/imap.so' -
/usr/local/zend/lib/php/20090626/imap.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/intl.so' -
/usr/local/zend/lib/php/20090626/intl.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/json.so' -
/usr/local/zend/lib/php/20090626/json.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/ldap.so' -
/usr/local/zend/lib/php/20090626/ldap.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/mbstring.so' -
/usr/local/zend/lib/php/20090626/mbstring.so: cannot open shared object file: No such file or directory in Unknown on line
0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/mcrypt.so' -
/usr/local/zend/lib/php/20090626/mcrypt.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/mongo.so' -
/usr/local/zend/lib/php/20090626/mongo.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/mysql.so' -
/usr/local/zend/lib/php/20090626/mysql.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/mysqli.so' -
/usr/local/zend/lib/php/20090626/mysqli.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/pdo_mysql.so' -
/usr/local/zend/lib/php/20090626/pdo_mysql.so: cannot open shared object file: No such file or directory in Unknown on
line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/pdo_pgsql.so' -
/usr/local/zend/lib/php/20090626/pdo_pgsql.so: cannot open shared object file: No such file or directory in Unknown on
line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/pgsql.so' -
/usr/local/zend/lib/php/20090626/pgsql.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/phar.so' -
/usr/local/zend/lib/php/20090626/phar.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/posix.so' -
/usr/local/zend/lib/php/20090626/posix.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/soap.so' -
/usr/local/zend/lib/php/20090626/soap.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/sockets.so' -
/usr/local/zend/lib/php/20090626/sockets.so: cannot open shared object file: No such file or directory in Unknown on line
0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/sqlite.so' -
/usr/local/zend/lib/php/20090626/sqlite.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/tidy.so' -
/usr/local/zend/lib/php/20090626/tidy.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/tokenizer.so' -
/usr/local/zend/lib/php/20090626/tokenizer.so: cannot open shared object file: No such file or directory in Unknown on
line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/xsl.so' -
/usr/local/zend/lib/php/20090626/xsl.so: cannot open shared object file: No such file or directory in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php/20090626/zip.so' -
/usr/local/zend/lib/php/20090626/zip.so: cannot open shared object file: No such file or directory in Unknown on line 0
Attempting to discover channel "pear.drush.org"...
downloading channel.xml ...
Starting to download channel.xml (804 bytes)
....done: 804 bytes
Auto-discovered channel "pear.drush.org", alias "drush", adding to registry
downloading drush-6.1.0.0.tgz ...
Starting to download drush-6.1.0.0.tgz (504,788 bytes)
...done: 504,788 bytes
install ok: channel://pear.drush.org/drush-6.1.0.0

Download and install the latest stable version of Drupal

/var/lib/openshift/52731b8603ef64802a000381/app-root/runtime/repo/.openshift/action_hooks/build: line 41: drush: command
not found
ERROR: Unable download and install Drupal.
An error occurred executing 'gear postreceive' (exit code: 7)
Error message: Failed to execute action hook 'build' for 52731b8603ef64802a000381 application drupal

For more details about the problem, try running the command again with the '--trace' option.

Tested in INT(devenv_4043),still could reproduce this issue.

I was not able to reproduce the issue on devenv_4044.

@Wei Sun, can you please retest again or provide the devenv_4043 #ami reference?

I reproduced the issue on the current INT(devenv_4052). Going to launch devenv_4052 and report back.

devenv_4052: SUCCESS

I can't reproduce the issue.

Zend Server should provide all the necessary extensions to run popular php apps such as Drupal, Magento and wordpress.  Please try installing such apps without using pear/pecl.

@Wei Sun, I couldn't reproduce the issue on INT/PROD right now. Can you please verify?

@Vojtech Vitek, I checked it on INT(devenv_4141), the issue was not totally fixed. It was failed to create drupal quickstart for Zend-6.1, but successful to create drupal quickstart for Zend-5.6. Please refer to the following results:

1. For Zend-6.1
1) drupal with mysql-5.1
]$ rhc app create drupal6 zend-6.1 mysql-5.1 cron --from-code=git://github.com/openshift/drupal-quickstart.git --no-git
Using cron-1.4 (Cron 1.4) for 'cron'

Application Options
-------------------
Domain:      cdm
Cartridges:  zend-6.1, mysql-5.1, cron-1.4
Source Code: git://github.com/openshift/drupal-quickstart.git
Gear Size:   default
Scaling:     no

Creating application 'drupal6' ... 

The initial build for the application failed: Shell command '/sbin/runuser -s /bin/sh 52b020166cec0e4eae0001b3 -c "exec /usr/bin/runcon 'unconfined_u:system_r:openshift_t:s0:c3,c672' /bin/sh -c \"gear
postreceive --init >> /tmp/initial-build.log 2>&1\""' returned an error. rc=255

.Last 10 kB of build output:
Stopping Cron cartridge
Stopping Zend Server daemon
zsd is not running
Stopping Zend Server JobQueue daemon
jqd is not running
Stopping Zend Server Deployment daemon
zdd is not running
Stopping Zend Server Java Bridge daemon
java_daemon is not running
Stopping Zend Server Console

lighttpd is not running
Stopping Apache
Syntax error on line 2 of /var/lib/openshift/52b020166cec0e4eae0001b3/zend/configuration/etc/conf.d/openshift.conf:
DocumentRoot must be a directory
httpd (no pid file) not running
Stopping Zend Server Monitor node
monitor is not running
Stopping MySQL cartridge
Repairing links for 1 deployments
Building git ref 'master', commit 8b529ba
Checking pear: pear.drush.org/drush

Attempting to discover channel "pear.drush.org"...
downloading channel.xml ...
Starting to download channel.xml (804 bytes)
....done: 804 bytes
Auto-discovered channel "pear.drush.org", alias "drush", adding to registry
downloading drush-6.2.0.0.tgz ...
Starting to download drush-6.2.0.0.tgz (505,989 bytes)
...done: 505,989 bytes
install ok: channel://pear.drush.org/drush-6.2.0.0

Download and install the latest stable version of Drupal

Drush command terminated abnormally due to an unrecoverable error.   [error]
Error: Call to undefined function ctype_alnum() in
/var/lib/openshift/52b020166cec0e4eae0001b3/app-root/runtime/dependencies/zend/phplib/pear/pear/php/drush/includes/command.inc,
line 896
ERROR: Unable download and install Drupal.
An error occurred executing 'gear postreceive' (exit code: 7)
Error message: Failed to execute action hook 'build' for 52b020166cec0e4eae0001b3 application drupal6

For more details about the problem, try running the command again with the '--trace' option.

2) drupal with mysql-5.5
]$ rhc app create drupal6 zend-6 mysql-5.5 cron --from-code=git://github.com/openshift/drupal-quickstart.git --no-git
Using zend-6.1 (PHP - Zend Server 6.1 (PHP 5.4)) for 'zend-6'
Using cron-1.4 (Cron 1.4) for 'cron'

Application Options
-------------------
Domain:      cdm
Cartridges:  zend-6.1, mysql-5.5, cron-1.4
Source Code: git://github.com/openshift/drupal-quickstart.git
Gear Size:   default
Scaling:     no

Creating application 'drupal6' ... 
The initial build for the application failed: Shell command '/sbin/runuser -s /bin/sh 52b020cb03ef6434bc000193 -c "exec /usr/bin/runcon 'unconfined_u:system_r:openshift_t:s0:c5,c931' /bin/sh -c \"gear
postreceive --init >> /tmp/initial-build.log 2>&1\""' returned an error. rc=255

.Last 10 kB of build output:
Stopping MySQL cartridge
Stopping Cron cartridge
Stopping Zend Server daemon
zsd is not running
Stopping Zend Server JobQueue daemon
jqd is not running
Stopping Zend Server Deployment daemon
zdd is not running
Stopping Zend Server Java Bridge daemon
java_daemon is not running
Stopping Zend Server Console

lighttpd is not running
Stopping Apache
Syntax error on line 2 of /var/lib/openshift/52b020cb03ef6434bc000193/zend/configuration/etc/conf.d/openshift.conf:
DocumentRoot must be a directory
httpd (no pid file) not running
Stopping Zend Server Monitor node
monitor is not running
Repairing links for 1 deployments
Building git ref 'master', commit 8b529ba
Checking pear: pear.drush.org/drush

Attempting to discover channel "pear.drush.org"...
downloading channel.xml ...
Starting to download channel.xml (804 bytes)
....done: 804 bytes
Auto-discovered channel "pear.drush.org", alias "drush", adding to registry
downloading drush-6.2.0.0.tgz ...
Starting to download drush-6.2.0.0.tgz (505,989 bytes)
...done: 505,989 bytes
install ok: channel://pear.drush.org/drush-6.2.0.0

Download and install the latest stable version of Drupal

Drush command terminated abnormally due to an unrecoverable error.   [error]
Error: Call to undefined function ctype_alnum() in
/var/lib/openshift/52b020cb03ef6434bc000193/app-root/runtime/dependencies/zend/phplib/pear/pear/php/drush/includes/command.inc,
line 896
ERROR: Unable download and install Drupal.
An error occurred executing 'gear postreceive' (exit code: 7)
Error message: Failed to execute action hook 'build' for 52b020cb03ef6434bc000193 application drupal6

For more details about the problem, try running the command again with the '--trace' option.



2. For Zend-5.6
1) drupal with mysql-5.1
]$ rhc app create drupal zend-5 mysql-5.1 cron --from-code=git://github.com/openshift/drupal-quickstart.git --no-git
Using zend-5.6 (PHP - Zend Server 5.6 (PHP 5.3)) for 'zend-5'
Using cron-1.4 (Cron 1.4) for 'cron'

Application Options
-------------------
Domain:      cdm
Cartridges:  zend-5.6, mysql-5.1, cron-1.4
Source Code: git://github.com/openshift/drupal-quickstart.git
Gear Size:   default
Scaling:     no

Creating application 'drupal' ... done

  Note: You should set password for the Zend Server Console at: https://drupal-cdm.int.rhcloud.com/ZendServer

MySQL 5.1 database added.  Please make note of these credentials:

       Root User: adminquCiEF2
   Root Password: B4UNER54i8sa
   Database Name: drupal

Connection URL: mysql://$OPENSHIFT_MYSQL_DB_HOST:$OPENSHIFT_MYSQL_DB_PORT/

You can manage your new MySQL database by also embedding phpmyadmin.
The phpmyadmin username and password will be the same as the MySQL credentials above.

To schedule your scripts to run on a periodic basis, add the scripts to 
your application's .openshift/cron/{minutely,hourly,daily,weekly,monthly}/
directories (and commit and redeploy your application).

Example: A script .openshift/cron/hourly/crony added to your application
         will be executed once every hour.
         Similarly, a script .openshift/cron/weekly/chronograph added
         to your application will be executed once every week.

Zend Server 5.6 started successfully
Zend Server 5.6 stopped successfully
Zend Server 5.6 started successfully

Waiting for your DNS name to be available ... done

Your application 'drupal' is now available.

  URL:        http://drupal-cdm.int.rhcloud.com/
  SSH to:     52b01da403ef641617000001.rhcloud.com
  Git remote: ssh://52b01da403ef641617000001.rhcloud.com/~/git/drupal.git/

Run 'rhc show-app drupal' for more details about your app.

2) drupal with mysql-5.5
]$ rhc app create drupal5 zend-5.6 mysql-5.5 cron --from-code=git://github.com/openshift/drupal-quickstart.git --no-git
Using cron-1.4 (Cron 1.4) for 'cron'

Application Options
-------------------
Domain:      cdm
Cartridges:  zend-5.6, mysql-5.5, cron-1.4
Source Code: git://github.com/openshift/drupal-quickstart.git
Gear Size:   default
Scaling:     no

Creating application 'drupal5' ... done

  Note: You should set password for the Zend Server Console at: https://drupal5-cdm.int.rhcloud.com/ZendServer

MySQL 5.5 database added.  Please make note of these credentials:

       Root User: adminbfp4svS
   Root Password: StPtc4NwAzFS
   Database Name: drupal5

Connection URL: mysql://$OPENSHIFT_MYSQL_DB_HOST:$OPENSHIFT_MYSQL_DB_PORT/

You can manage your new MySQL database by also embedding phpmyadmin.
The phpmyadmin username and password will be the same as the MySQL credentials above.

To schedule your scripts to run on a periodic basis, add the scripts to 
your application's .openshift/cron/{minutely,hourly,daily,weekly,monthly}/
directories (and commit and redeploy your application).

Example: A script .openshift/cron/hourly/crony added to your application
         will be executed once every hour.
         Similarly, a script .openshift/cron/weekly/chronograph added
         to your application will be executed once every week.

Zend Server 5.6 started successfully
Zend Server 5.6 stopped successfully
Zend Server 5.6 started successfully

Waiting for your DNS name to be available ... done

Your application 'drupal5' is now available.

  URL:        http://drupal5-cdm.int.rhcloud.com/
  SSH to:     52b01f4003ef6434bc000149.rhcloud.com
  Git remote: ssh://52b01f4003ef6434bc000149.rhcloud.com/~/git/drupal5.git/

Run 'rhc show-app drupal5' for more details about your app.

@chunchen,
> Drush command terminated abnormally due to an unrecoverable error.   [error]
> Error: Call to undefined function ctype_alnum() in
> /var/lib/openshift/52b020166cec0e4eae0001b3/app-root/runtime/dependencies/zend/phplib/pear/pear/php/drush/includes/command.inc,
> line 896
this is completely unrelated bug. Can you please submit a new bug "ctype_alnum() function not available in Zend-6.1" and VERIFY this bug (as it was originally open against zend-5.6 only)?

Thanks, Vojtech

According to #Comment 18 and #Comment 19,verify this bug.

File a new bug: https://bugzilla.redhat.com/show_bug.cgi?id=1044312 to track the issue "ctype_alnum() function not available in Zend-6.1"