How to install ssh2 on Centos?

Question

I want to install ssh2 on Linux server, with Centos 7 and PHP 7.3

Tried following steps:

1. yum install gcc php-devel libssh2 libssh2-devel php-pear make

2. pecl install -f ssh2

Step 2 gave make error

Step 2 error

Step 2 error p2

Here are some of the errors

/var/tmp/ssh2/ssh2.c:312:2: error: too many arguments to function 'zend_hash_fin                                                                             d'
  if (zend_hash_find(ht, method, method_len + 1, (void**)&value) == FAILURE) {
  ^
In file included from /usr/include/php/Zend/zend.h:32:0,
                 from /usr/include/php/main/php.h:33,
                 from /var/tmp/ssh2/ssh2.c:25:
                 ^
/var/tmp/ssh2/ssh2.c: In function 'php_ssh2_session_connect':
/var/tmp/ssh2/ssh2.c:338:2: error: too few arguments to function 'php_network_co                                                                             nnect_socket_to_host'
  socket = php_network_connect_socket_to_host(host, port, SOCK_STREAM, 0, &tv, N                                                                             ULL, NULL, NULL, 0 TSRMLS_CC);
  ^
In file included from /usr/include/php/ext/standard/file.h:22:0,
                 from /var/tmp/ssh2/ssh2.c:27:
/var/tmp/ssh2/ssh2.c:374:3: error: too many arguments to function 'zend_hash_fin                                                                             d'
   if (zend_hash_find(HASH_OF(methods), "client_to_server", sizeof("client_to_se                                                                             rver"), (void**)&container) == SUCCESS &&
   ^
In file included from /usr/include/php/Zend/zend.h:32:0,
                 from /usr/include/php/main/php.h:33,
                 from /var/tmp/ssh2/ssh2.c:25:
/usr/include/php/Zend/zend_hash.h:166:30: note: declared here
 ZEND_API zval* ZEND_FASTCALL zend_hash_find(const HashTable *ht, zend_string *k                                                                             ey);
                              ^

/var/tmp/ssh2/ssh2.c:390:3: error: too many arguments to function 'zend_hash_fin                                                                             d'
   if (zend_hash_find(HASH_OF(methods), "server_to_client", sizeof("server_to_cl                                                                             ient"), (void**)&container) == SUCCESS &&
   ^
In file included from /usr/include/php/Zend/zend.h:32:0,
                 from /usr/include/php/main/php.h:33,
                 from /var/tmp/ssh2/ssh2.c:25:

/var/tmp/ssh2/ssh2.c:496:46: error: macro "add_assoc_string" passed 4 arguments,                                                                              but takes just 3
  add_assoc_string(return_value, "kex", kex, 1);

Answer 1

I had the same problem on same system. Here I did and installed ssh2 successfully.

1. Install neccessary packages:

   • [root@lepc ~]# yum -y install make gcc glibc-devel zlib-devel openssl-devel
   • [root@lepc ~]# yum -y install --enablerepo=epel,remi,remi-php73 php-devel

2. Install libssh2:

   • [root@lepc ~]# wget https://www.libssh2.org/download/libssh2-1.9.0.tar.gz
   • [root@lepc ~]# tar vxzf libssh2-1.9.0.tar.gz
   • [root@lepc ~]# cd libssh2-1.9.0
   • [root@lepc ~]# ./configure
   • [root@lepc ~]# make
   • [root@lepc ~]# make install

3. Install ssh2 from pecl:

   • [root@lepc ~]# wget https://pecl.php.net/get/ssh2-1.2.tgz
   • [root@lepc ~]# tar vxzf ssh2-1.2.tgz
   • [root@lepc ~]# cd ssh2-1.2
   • [root@lepc ~]# phpize
   • [root@lepc ~]# ./configure --with-ssh2
   • [root@lepc ~]# make
   • [root@lepc ~]# make install

4. Enable ssh2 extension in PHP 7.3:

   • [root@lepc ~]# echo "extension=ssh2.so" > /etc/php.d/ssh2.ini Or if there isn't any file ssh2.ini there, you can do:
   • [root@lepc ~]# echo "extension=ssh2.so" > /etc/php.d/php.ini

5. Check if extension is available

   • [root@lepc ~]# php -m | grep ssh2
   • [root@lepc ~]# ssh2

   Or another way:

   • [root@lepc ~]# ls /usr/lib64/php/modules/ | grep ssh2.so
   • [root@lepc ~]# ssh2.so

Maybe late but hope this will help someone.

Answer 2

I'm not going to go double check this but I expect you have a wrong version of PHP for that library PHP wrapper.