title: PHP unable to run MYSQLI functions on Amazon EC2 micro instance
body: <p>I'm just now implementing a PHP &lt;-&gt; MYSQL interface.  The instance seems to be reporting that the MYSQLI plugin is not installed, however, all other indications are contrary.</p>
  <p>My Code:</p>
  <pre><code>&lt;?php
      error_reporting(E_ALL);
      ini_set('error_reporting', E_ALL);
      ini_set('display_errors', 'On');
      $mysql = mysqli_connect( 'localhost', 'EulerPhpUser', '*********' );
      // more code
  </code></pre>
  <p>error message:</p>
  <blockquote>
  <p>Fatal error: Call to undefined function mysqli_connect() in /var/www/html/euler/login.php on line 27</p>
  </blockquote>
  <pre><code>$ cat /etc/*-release
  Amazon Linux AMI release 2013.03
  </code></pre>
  <p>Here's the portion of my php.ini file</p>
  <pre><code>; Maximum number of links.  -1 means no limit.
  ; http://www.php.net/manual/en/mysqli.configuration.php#ini.mysqli.max-links
  mysqli.max_links = -1
  
  ; Default port number for mysqli_connect().  If unset, mysqli_connect() will use
  ; the $MYSQL_TCP_PORT or the mysql-tcp entry in /etc/services or the
  ; compile-time value defined MYSQL_PORT (in that order).  Win32 will only look
  ; at MYSQL_PORT.
  ; http://www.php.net/manual/en/mysqli.configuration.php#ini.mysqli.default-port
  mysqli.default_port = 3306
  
  ; Default socket name for local MySQL connects.  If empty, uses the built-in
  ; MySQL defaults.
  ; http://www.php.net/manual/en/mysqli.configuration.php#ini.mysqli.default-socket
  mysqli.default_socket =
  
  ; Default host for mysql_connect() (doesn't apply in safe mode).
  ; http://www.php.net/manual/en/mysqli.configuration.php#ini.mysqli.default-host
  mysqli.default_host =
  
  ; Default user for mysql_connect() (doesn't apply in safe mode).
  ; http://www.php.net/manual/en/mysqli.configuration.php#ini.mysqli.default-user
  mysqli.default_user =
  
  ; Default password for mysqli_connect() (doesn't apply in safe mode).
  ; Note that this is generally a *bad* idea to store passwords in this file.
  ; *Any* user with PHP access can run 'echo get_cfg_var(&quot;mysqli.default_pw&quot;)
  ; and reveal this password!  And of course, any users with read access to this
  ; file will be able to reveal the password as well.
  ; http://www.php.net/manual/en/mysqli.configuration.php#ini.mysqli.default-pw
  mysqli.default_pw =
  
  ; Allow or prevent reconnect
  mysqli.reconnect = Off
  </code></pre>
  <p>This is the only section of the phpifo() where my search for mysqli yielded results</p>
  <pre><code>Configure Command 
  './configure' '--build=x86_64-redhat-linux-gnu' '--host=x86_64-redhat-linux-gnu' '--target=x86_64-amazon-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib64' '--libexecdir=/usr/libexec' '--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--cache-file=../config.cache' '--with-libdir=lib64' '--with-config-file-path=/etc' '--with-config-file-scan-dir=/etc/php.d' '--disable-debug' '--with-pic' '--disable-rpath' '--without-pear' '--with-bz2' '--with-exec-dir=/usr/bin' '--with-freetype-dir=/usr' '--with-png-dir=/usr' '--with-xpm-dir=/usr' '--enable-gd-native-ttf' '--with-t1lib=/usr' '--without-gdbm' '--with-gettext' '--with-gmp' '--with-iconv' '--with-jpeg-dir=/usr' '--with-openssl' '--with-pcre-regex=/usr' '--with-zlib' '--with-layout=GNU' '--enable-exif' '--enable-ftp' '--enable-magic-quotes' '--enable-sockets' '--with-kerberos' '--enable-ucd-snmp-hack' '--enable-shmop' '--enable-calendar' '--without-sqlite' '--with-libxml-dir=/usr' '--enable-xml' '--with-system-tzdata' '--with-mhash' '--with-apxs2=/usr/sbin/apxs' '--libdir=/usr/lib64/php' '--enable-pdo=shared' '--with-mysql=shared,/usr' '--with-mysqli=shared,/usr/lib64/mysql/mysql_config' '--with-pdo-mysql=shared,/usr/lib64/mysql/mysql_config' '--with-pdo-sqlite=shared,/usr' '--without-gd' '--disable-dom' '--disable-dba' '--without-unixODBC' '--disable-xmlreader' '--disable-xmlwriter' '--without-sqlite3' '--disable-phar' '--disable-fileinfo' '--disable-json' '--without-pspell' '--disable-wddx' '--without-curl' '--disable-posix' '--disable-sysvmsg' '--disable-sysvshm' '--disable-sysvsem' 
  </code></pre>
  <p>Finally, one other thing to note.  I tried to run the following code, and the server returns a completely blank page back.  No errors, no nothing. As if php crashed without generating an error.  I'm not sure how to interpret that.</p>
  <pre><code>if (function_exists('mysqli_connect')) {
       echo 'mysqli is installed';
  } 
  </code></pre>
  <p>I even got so frustrated that I tried some PDO, but then got error <strong>Connection failed: could not find driver</strong></p>