diff --git a/ChangeLog b/ChangeLog
index 58dd4f1e60..c685462bea 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -30,7 +30,7 @@ phpMyAdmin - ChangeLog
 - bug #4439 Table list in left panel doesn't expand
 + rfe       Improved validation when inserting data
 + rfe #1491 Support InnoDB for database Query by example
-+ rfe #345  Normalize a table 
++ rfe #345  Normalize a table
 + rfe #1123 Zeroconf PMA tables support
 + rfe #1492 Remove the distinct query window / Add SQL log+history panel
 + rfe #919  Multiple-column foreign key relation
@@ -41,6 +41,7 @@ phpMyAdmin - ChangeLog
 +           MariaDB 10+ multi-master replication support
 + rfe #1544 MySQL 5.7.5 compatibility
 + rfe #1529 Avoid session timeout when user is active
+- bug #4528 Can't import dump via SQL field
 
 4.2.9.0 (not yet released)
 - bug       ajax.js responseHandler: cannot read property of null
diff --git a/libraries/String.class.php b/libraries/String.class.php
index 94aaf19607..730ba5ab25 100644
--- a/libraries/String.class.php
+++ b/libraries/String.class.php
@@ -270,6 +270,22 @@ class PMA_String implements PMA_StringByte, PMA_StringType
         return $this->_byte->strtoupper($string);
     }
 
+    /**
+     * Returns position of $needle in $haystack from a regular expression match
+     *
+     * @param string $pattern Pattern to search for
+     * @param string $subject Input string
+     * @param int    $offset  Start from search
+     *
+     * @return integer position of $needle in $haystack or false
+     *
+     * @todo add unit tests
+     */
+    public function pregStrpos($pattern, $subject, $offset = 0)
+    {
+        return $this->_byte->pregStrpos($pattern, $subject, $offset);
+    }
+
     /**
      * Get the ordinal value of a string
      *
diff --git a/libraries/StringByte.int.php b/libraries/StringByte.int.php
index 1da970a921..d130ec6f95 100644
--- a/libraries/StringByte.int.php
+++ b/libraries/StringByte.int.php
@@ -141,6 +141,17 @@ interface PMA_StringByte
      */
     public function strtoupper($string);
 
+    /**
+     * Returns position of $needle in $haystack from a regular expression match
+     *
+     * @param string $pattern Pattern to search for
+     * @param string $subject Input string
+     * @param int    $offset  Start from search
+     *
+     * @return integer position of $needle in $haystack or false
+     */
+    public function pregStrpos($pattern, $subject, $offset = 0);
+
     /**
      * Get the ordinal value of a string
      *
diff --git a/libraries/StringMB.class.php b/libraries/StringMB.class.php
index aa1bb98978..74ef6c7774 100644
--- a/libraries/StringMB.class.php
+++ b/libraries/StringMB.class.php
@@ -293,5 +293,28 @@ class PMA_StringMB implements PMA_StringByte
             'UCS-4BE'
         );
     }
+
+    /**
+     * Perform a regular expression match
+     *
+     * @param string $pattern Pattern to search for
+     * @param string $subject Input string
+     * @param int    $offset  Start from search
+     *
+     * @return int 1 if matched, 0 if doesn't, false on failure
+     */
+    public function pregStrpos($pattern, $subject, $offset = 0)
+    {
+        $matches = array();
+        $bFind = preg_match(
+            $pattern, $subject, $matches, PREG_OFFSET_CAPTURE, $offset
+        );
+        if (1 !== $bFind) {
+            return false;
+        }
+
+        $strFound = $matches[1][0];
+        return $this->strpos($subject, $strFound, $offset);
+    }
 }
 ?>
diff --git a/libraries/StringNative.class.php b/libraries/StringNative.class.php
index 5cfa4ae86a..a70f1bcc4d 100644
--- a/libraries/StringNative.class.php
+++ b/libraries/StringNative.class.php
@@ -197,6 +197,28 @@ class PMA_StringNative implements PMA_StringByte
         return strtoupper($string);
     }
 
+    /**
+     * Perform a regular expression match
+     *
+     * @param string $pattern Pattern to search for
+     * @param string $subject Input string
+     * @param int    $offset  Start from search
+     *
+     * @return int 1 if matched, 0 if doesn't, false on failure
+     */
+    public function pregStrpos($pattern, $subject, $offset = 0)
+    {
+        $matches = array();
+        $bFind = preg_match(
+            $pattern, $subject, $matches, PREG_OFFSET_CAPTURE, $offset
+        );
+        if (1 !== $bFind) {
+            return false;
+        }
+
+        return $matches[1][1];
+    }
+
     /**
      * Get the ordinal value of a string
      *
diff --git a/libraries/plugins/import/ImportSql.class.php b/libraries/plugins/import/ImportSql.class.php
index 351cb9f9f6..98dc3ee93b 100644
--- a/libraries/plugins/import/ImportSql.class.php
+++ b/libraries/plugins/import/ImportSql.class.php
@@ -194,18 +194,16 @@ class ImportSql extends ImportPlugin
                 $old_i = $i;
                 // this is about 7 times faster that looking for each sequence i
                 // one by one with strpos()
-                $match = preg_match(
+                $posPattern = $pmaString->pregStrpos(
                     '/(\'|"|#|-- |\/\*|`|(?i)(?<![A-Z0-9_])'
                     . $delimiter_keyword . ')/',
                     $buffer,
-                    $matches,
-                    PREG_OFFSET_CAPTURE,
                     $i
                 );
-                if ($match) {
+                if (false !== $posPattern) {
                     // in $matches, index 0 contains the match for the complete
                     // expression but we don't use it
-                    $first_position = $matches[1][1];
+                    $first_position = $posPattern;
                 } else {
                     $first_position = $big_value;
                 }
@@ -247,7 +245,8 @@ class ImportSql extends ImportPlugin
                 }
 
                 // Grab current character
-                $ch = $buffer[$i];
+                //$ch = $buffer[$i]; //Don't use this syntax, because of UTF8 strings
+                $ch = $pmaString->substr($buffer, $i, 1);
 
                 // Quotes
                 if ($pmaString->strpos('\'"`', $ch) !== false) {
@@ -279,7 +278,7 @@ class ImportSql extends ImportPlugin
                         }
                         // Was not the quote escaped?
                         $j = $pos - 1;
-                        while ($buffer[$j] == '\\') {
+                        while ($pmaString->substr($buffer, $j, 1) == '\\') {
                             $j--;
                         }
                         // Even count means it was not escaped
@@ -305,8 +304,10 @@ class ImportSql extends ImportPlugin
 
                 // Not enough data to decide
                 if ((($i == ($len - 1) && ($ch == '-' || $ch == '/'))
-                    || ($i == ($len - 2) && (($ch == '-' && $buffer[$i + 1] == '-')
-                    || ($ch == '/' && $buffer[$i + 1] == '*'))))
+                    || ($i == ($len - 2) && (($ch == '-'
+                    && $pmaString->substr($buffer, $i + 1, 1) == '-')
+                    || ($ch == '/'
+                    && $pmaString->substr($buffer, $i + 1, 1) == '*'))))
                     && ! $GLOBALS['finished']
                 ) {
                     break;
@@ -314,10 +315,13 @@ class ImportSql extends ImportPlugin
 
                 // Comments
                 if ($ch == '#'
-                    || ($i < ($len - 1) && $ch == '-' && $buffer[$i + 1] == '-'
-                    && (($i < ($len - 2) && $buffer[$i + 2] <= ' ')
-                    || ($i == ($len - 1)  && $GLOBALS['finished'])))
-                    || ($i < ($len - 1) && $ch == '/' && $buffer[$i + 1] == '*')
+                    || ($i < ($len - 1) && $ch == '-'
+                    && $pmaString->substr($buffer, $i + 1, 1) == '-'
+                    && (($i < ($len - 2)
+                    && $pmaString->substr($buffer, $i + 2, 1) <= ' ')
+                    || ($i == ($len - 1) && $GLOBALS['finished'])))
+                    || ($i < ($len - 1) && $ch == '/'
+                    && $pmaString->substr($buffer, $i + 1, 1) == '*')
                 ) {
                     // Copy current string to SQL
                     if ($start_pos != $i) {