Enable strict mode on PHP files

Signed-off-by: Maurício Meneghini Fauth <[email protected]>

Author: MauricioFauth

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## [Unreleased]
 
 * Drop support for PHP 5.3, PHP 5.4, PHP 5.5, PHP 5.6, PHP 7.0 and HHVM
+* Enable strict mode on PHP files
 
 ## [4.3.1] - 2019-01-05
 

bin/highlight-query

@@ -1,5 +1,6 @@
 #!/usr/bin/env php
 <?php
+declare(strict_types=1);
 
 $files = array(
     __DIR__ . "/../vendor/autoload.php",

bin/lint-query

@@ -1,5 +1,6 @@
 #!/usr/bin/env php
 <?php
+declare(strict_types=1);
 
 $files = array(
     __DIR__ . "/../vendor/autoload.php",
@@ -27,4 +28,3 @@ if (!$found) {
 
 $cli = new PhpMyAdmin\SqlParser\Utils\CLI();
 exit($cli->runLint());
-

bin/tokenize-query

@@ -1,5 +1,6 @@
 #!/usr/bin/env php
 <?php
+declare(strict_types=1);
 
 $files = array(
     __DIR__ . "/../vendor/autoload.php",

src/Component.php

@@ -1,5 +1,4 @@
 <?php
-
 /**
  * Defines a component that is later extended to parse specialized components or
  * keywords.
@@ -8,6 +7,7 @@
  * *Component parsers can be reused in multiple  situations and *Keyword parsers
  * count on the *Component classes to do their job.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser;
 

src/Components/AlterOperation.php

@@ -1,8 +1,8 @@
 <?php
-
 /**
  * Parses an alter operation.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser\Components;
 

src/Components/Array2d.php

@@ -1,8 +1,8 @@
 <?php
-
 /**
  * `VALUES` keyword parser.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser\Components;
 

src/Components/ArrayObj.php

@@ -1,8 +1,8 @@
 <?php
-
 /**
  * Parses an array.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser\Components;
 

src/Components/CaseExpression.php

@@ -1,8 +1,8 @@
 <?php
-
 /**
  * Parses a reference to a CASE expression.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser\Components;
 

src/Components/Condition.php

@@ -1,8 +1,8 @@
 <?php
-
 /**
  * `WHERE` keyword parser.
  */
+declare(strict_types=1);
 
 namespace PhpMyAdmin\SqlParser\Components;
 
@@ -87,7 +87,7 @@ class Condition extends Component
      */
     public function __construct($expr = null)
     {
-        $this->expr = trim($expr);
+        $this->expr = trim((string) $expr);
     }
 
     /**