diff --git a/examples/connecting-to-databases.php b/examples/connecting-to-databases.php
index d7ab1c0d..97acee6b 100644
--- a/examples/connecting-to-databases.php
+++ b/examples/connecting-to-databases.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Connecting to Databases | dibi</h1>
diff --git a/examples/database-reflection.php b/examples/database-reflection.php
index 73f40ebf..d123c86a 100644
--- a/examples/database-reflection.php
+++ b/examples/database-reflection.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Database Reflection | dibi</h1>
diff --git a/examples/dumping-sql-and-result-set.php b/examples/dumping-sql-and-result-set.php
index 98007286..cf7f4e18 100644
--- a/examples/dumping-sql-and-result-set.php
+++ b/examples/dumping-sql-and-result-set.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Dumping SQL and Result Set | dibi</h1>
diff --git a/examples/importing-dump-from-file.php b/examples/importing-dump-from-file.php
index bc4437df..046000cd 100644
--- a/examples/importing-dump-from-file.php
+++ b/examples/importing-dump-from-file.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Importing SQL Dump from File | dibi</h1>
diff --git a/examples/query-language-and-conditions.php b/examples/query-language-and-conditions.php
index 63b5c69e..f9404b5f 100644
--- a/examples/query-language-and-conditions.php
+++ b/examples/query-language-and-conditions.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Query Language & Conditions | dibi</h1>
diff --git a/examples/query-language-basic-examples.php b/examples/query-language-basic-examples.php
index c6167ad9..71763fd5 100644
--- a/examples/query-language-basic-examples.php
+++ b/examples/query-language-basic-examples.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Query Language Basic Examples | dibi</h1>
diff --git a/examples/using-datetime.php b/examples/using-datetime.php
index 8cba64ef..0d453f20 100644
--- a/examples/using-datetime.php
+++ b/examples/using-datetime.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using DateTime | dibi</h1>
diff --git a/examples/using-fluent-syntax.php b/examples/using-fluent-syntax.php
index ab550888..1f835b10 100644
--- a/examples/using-fluent-syntax.php
+++ b/examples/using-fluent-syntax.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using Fluent Syntax | dibi</h1>
diff --git a/examples/using-limit-and-offset.php b/examples/using-limit-and-offset.php
index cb658ce3..8e413b99 100644
--- a/examples/using-limit-and-offset.php
+++ b/examples/using-limit-and-offset.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using Limit & Offset | dibi</h1>
diff --git a/examples/using-logger.php b/examples/using-logger.php
index 1e794734..4dca0f8f 100644
--- a/examples/using-logger.php
+++ b/examples/using-logger.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using Logger | dibi</h1>
diff --git a/examples/using-profiler.php b/examples/using-profiler.php
index 91b4ba07..17da3ba7 100644
--- a/examples/using-profiler.php
+++ b/examples/using-profiler.php
@@ -1,5 +1,7 @@
-<?php ob_start() // needed by FirePHP ?>
-
+<?php
+declare(strict_types=1);
+ob_start(); // needed by FirePHP
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using Profiler | dibi</h1>
diff --git a/examples/using-substitutions.php b/examples/using-substitutions.php
index 0c48963e..0f2af344 100644
--- a/examples/using-substitutions.php
+++ b/examples/using-substitutions.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using Substitutions | dibi</h1>
diff --git a/examples/using-transactions.php b/examples/using-transactions.php
index b77fae50..a7edd725 100644
--- a/examples/using-transactions.php
+++ b/examples/using-transactions.php
@@ -1,3 +1,6 @@
+<?php
+declare(strict_types=1);
+?>
 <!DOCTYPE html><link rel="stylesheet" href="data/style.css">
 
 <h1>Using Transactions | dibi</h1>
