more comment typos

lib/dml/moodle_recordset.php

@@ -56,7 +56,7 @@ abstract class moodle_recordset implements Iterator {
     //public abstract function next();
 
     /**
-     * Revinds are not supported!
+     * Rewinds are not supported!
      * @return void
      */
     public function rewind() {

lib/dml/moodle_temptables.php

@@ -18,7 +18,7 @@
 /**
  * Generic temptables object store
  *
- * Provides support to databases lacking some "expeted behaviour" related
+ * Provides support to databases lacking some "expected behaviour" related
  * with some operations with temporary tables like:
  *
  *   - databases not retrieving temp tables from information schema tables (mysql)
@@ -33,7 +33,7 @@
  * of doing temporary tables support 100% cross-db and transparent within the DB API.
  *
  * Only drivers needing it will use this store. Neither moodle_database (abstract) or
- * databses like postgres need this, because they don't lack any temp functionality.º:w
+ * databases like postgres need this, because they don't lack any temp functionality.º:w
 
  *
  * @package    moodlecore
@@ -124,7 +124,7 @@ class moodle_temptables {
         // We shouldn't have any temp table registered at the end of the script.
         // So we error_log that and, at the same time, drop all the pending temptables
         if ($temptables = $this->get_temptables()) {
-            error_log('Potential coding error - existing temptables found when dispossing database. Must be dropped!');
+            error_log('Potential coding error - existing temptables found when disposing database. Must be dropped!');
             foreach ($temptables as $temptable) {
                  $this->mdb->get_manager()->drop_temp_table(new xmldb_table($temptable));
             }

lib/dml/moodle_transaction.php

@@ -73,7 +73,7 @@ class moodle_transaction {
     /**
      * Commit delegated transaction.
      * The real database commit SQL is executed
-     * only after commiting all delegated transactions.
+     * only after committing all delegated transactions.
      *
      * Incorrect order of nested commits or rollback
      * at any level is resulting in rollback of SQL transaction.

lib/dml/mssql_native_moodle_database.php

@@ -167,7 +167,7 @@ class mssql_native_moodle_database extends moodle_database {
         $this->free_result($result);
 
         // Force ANSI nulls so the NULL check was done by IS NULL and NOT IS NULL
-        // instead of equal(=) and distinct(<>) simbols
+        // instead of equal(=) and distinct(<>) symbols
         $sql = "SET ANSI_NULLS ON";
         $this->query_start($sql, null, SQL_QUERY_AUX);
         $result = mssql_query($sql, $this->mssql);
@@ -200,7 +200,7 @@ class mssql_native_moodle_database extends moodle_database {
 
         $this->free_result($result);
 
-        // Connection stabilished and configured, going to instantiate the temptables controller
+        // Connection stabilised and configured, going to instantiate the temptables controller
         $this->temptables = new mssql_native_moodle_temptables($this);
 
         return true;
@@ -212,7 +212,7 @@ class mssql_native_moodle_database extends moodle_database {
      * Do NOT use connect() again, create a new instance if needed.
      */
     public function dispose() {
-        parent::dispose(); // Call parent dispose to write/close session and other common stuff before clossing conn
+        parent::dispose(); // Call parent dispose to write/close session and other common stuff before closing connection
         if ($this->mssql) {
             mssql_close($this->mssql);
             $this->mssql = null;
@@ -676,7 +676,7 @@ class mssql_native_moodle_database extends moodle_database {
         $limitfrom = ($limitfrom < 0) ? 0 : $limitfrom;
         $limitnum  = ($limitnum < 0)  ? 0 : $limitnum;
         if ($limitfrom or $limitnum) {
-            if ($limitnum >= 1) { // Only apply TOP clause if we have any limitnum (limitfrom offset is hadled later)
+            if ($limitnum >= 1) { // Only apply TOP clause if we have any limitnum (limitfrom offset is handled later)
                 $fetch = $limitfrom + $limitnum;
                 $sql = preg_replace('/^([\s(])*SELECT( DISTINCT)?(?!\s*TOP\s*\()/i',
                                     "\\1SELECT\\2 TOP $fetch", $sql);
@@ -1120,8 +1120,8 @@ class mssql_native_moodle_database extends moodle_database {
      * NOTE: this was originally returning only function name
      *
      * @param string $expr some string field, no aggregates
-     * @param mixed $start integer or expresion evaluating to int
-     * @param mixed $length optional integer or expresion evaluating to int
+     * @param mixed $start integer or expression evaluating to int
+     * @param mixed $length optional integer or expression evaluating to int
      * @return string sql fragment
      */
     public function sql_substr($expr, $start, $length=false) {