PHP 7.1 compatibility

Closes #96
Closes #101
Closes #102

.travis.yml

@@ -8,10 +8,9 @@ php:
 
 matrix:
   include:
-    - php: 7.0
+    - php: 7.1
       env: COVERAGE=1
   allow_failures:
-    - php: 7.1
     - php: hhvm
 
 cache:

composer.json

@@ -30,12 +30,12 @@
         "ext-xmlwriter": "*"
     },
     "require-dev": {
-        "dompdf/dompdf": "^0.7.0",
         "mpdf/mpdf": "^6.1",
         "tecnickcom/tcpdf": "^6.2",
         "squizlabs/php_codesniffer": "^2.7",
         "phpunit/phpunit": "^5.7",
-        "friendsofphp/php-cs-fixer": "^2.0"
+        "friendsofphp/php-cs-fixer": "^2.0",
+        "dompdf/dompdf": "^0.8.0"
     },
     "suggest": {
         "ext-zip": "Required to handle .xlsx .ods or .gnumeric files",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "content-hash": "97eae2a53946fe7524d2f8840bcc791e",
+    "content-hash": "c03c0e68b10b664a8fd8dc61adfacda2",
     "packages": [],
     "packages-dev": [
         {
@@ -63,28 +63,29 @@
         },
         {
             "name": "dompdf/dompdf",
-            "version": "v0.7.0",
+            "version": "v0.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/dompdf/dompdf.git",
-                "reference": "5c98652b1a5beb7e3cc8ec35419b2828dd63ab14"
+                "reference": "0f418c6b58fdeafc2a0e80eb1fa5e644e185089c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/dompdf/dompdf/zipball/5c98652b1a5beb7e3cc8ec35419b2828dd63ab14",
+                "url": "https://api.github.com/repos/dompdf/dompdf/zipball/0f418c6b58fdeafc2a0e80eb1fa5e644e185089c",
-                "reference": "5c98652b1a5beb7e3cc8ec35419b2828dd63ab14",
+                "reference": "0f418c6b58fdeafc2a0e80eb1fa5e644e185089c",
                 "shasum": ""
             },
             "require": {
                 "ext-dom": "*",
                 "ext-gd": "*",
                 "ext-mbstring": "*",
-                "phenx/php-font-lib": "0.4.*",
+                "phenx/php-font-lib": "0.5.*",
-                "phenx/php-svg-lib": "0.1.*",
+                "phenx/php-svg-lib": "0.2.*",
                 "php": ">=5.3.0"
             },
             "require-dev": {
-                "phpunit/phpunit": "3.7.*"
+                "phpunit/phpunit": "4.8.*",
+                "squizlabs/php_codesniffer": "2.*"
             },
             "type": "library",
             "extra": {
@@ -120,7 +121,7 @@
             ],
             "description": "DOMPDF is a CSS 2.1 compliant HTML to PDF converter",
             "homepage": "https://github.com/dompdf/dompdf",
-            "time": "2016-05-11T00:36:29+00:00"
+            "time": "2017-02-16T02:40:40+00:00"
         },
         {
             "name": "friendsofphp/php-cs-fixer",
@@ -282,22 +283,25 @@
         },
         {
             "name": "phenx/php-font-lib",
-            "version": "0.4",
+            "version": "0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PhenX/php-font-lib.git",
-                "reference": "b8af0cacdc3cbf1e41a586fcb78f506f4121a088"
+                "reference": "19ad2bebc35be028fcc0221025fcbf3d436a3962"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PhenX/php-font-lib/zipball/b8af0cacdc3cbf1e41a586fcb78f506f4121a088",
+                "url": "https://api.github.com/repos/PhenX/php-font-lib/zipball/19ad2bebc35be028fcc0221025fcbf3d436a3962",
-                "reference": "b8af0cacdc3cbf1e41a586fcb78f506f4121a088",
+                "reference": "19ad2bebc35be028fcc0221025fcbf3d436a3962",
                 "shasum": ""
             },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8"
+            },
             "type": "library",
             "autoload": {
-                "psr-0": {
+                "psr-4": {
-                    "FontLib\\": "src/"
+                    "FontLib\\": "src/FontLib"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
@@ -312,22 +316,25 @@
             ],
             "description": "A library to read, parse, export and make subsets of different types of font files.",
             "homepage": "https://github.com/PhenX/php-font-lib",
-            "time": "2015-05-06T20:02:39+00:00"
+            "time": "2017-02-11T10:58:43+00:00"
         },
         {
             "name": "phenx/php-svg-lib",
-            "version": "0.1",
+            "version": "v0.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PhenX/php-svg-lib.git",
-                "reference": "b419766515b3426c6da74b0e29e93d71c4f17099"
+                "reference": "de291bec8449b89acfe85691b5c71434797959dc"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PhenX/php-svg-lib/zipball/b419766515b3426c6da74b0e29e93d71c4f17099",
+                "url": "https://api.github.com/repos/PhenX/php-svg-lib/zipball/de291bec8449b89acfe85691b5c71434797959dc",
-                "reference": "b419766515b3426c6da74b0e29e93d71c4f17099",
+                "reference": "de291bec8449b89acfe85691b5c71434797959dc",
                 "shasum": ""
             },
+            "require": {
+                "sabberworm/php-css-parser": "6.0.*"
+            },
             "type": "library",
             "autoload": {
                 "psr-0": {
@@ -346,7 +353,7 @@
             ],
             "description": "A library to read, parse and export to PDF SVG files.",
             "homepage": "https://github.com/PhenX/php-svg-lib",
-            "time": "2015-05-06T18:49:49+00:00"
+            "time": "2016-12-13T20:25:45+00:00"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -989,6 +996,47 @@
             ],
             "time": "2016-10-10T12:19:37+00:00"
         },
+        {
+            "name": "sabberworm/php-css-parser",
+            "version": "6.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabberworm/PHP-CSS-Parser.git",
+                "reference": "9ea4b00c569b19f731d0c2e0e802055877ff40c2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabberworm/PHP-CSS-Parser/zipball/9ea4b00c569b19f731d0c2e0e802055877ff40c2",
+                "reference": "9ea4b00c569b19f731d0c2e0e802055877ff40c2",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.2"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "Sabberworm\\CSS": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Raphael Schweikert"
+                }
+            ],
+            "description": "Parser for CSS Files written in PHP",
+            "homepage": "http://www.sabberworm.com/blog/2010/6/10/php-css-parser",
+            "keywords": [
+                "css",
+                "parser",
+                "stylesheet"
+            ],
+            "time": "2015-08-24T08:48:52+00:00"
+        },
         {
             "name": "sebastian/code-unit-reverse-lookup",
             "version": "1.0.0",

src/PhpSpreadsheet/Shared/PCLZip/PclZip.php

@@ -1741,6 +1741,7 @@ class PclZip
         $v_memory_limit = ini_get('memory_limit');
         $v_memory_limit = trim($v_memory_limit);
         $last = strtolower(substr($v_memory_limit, -1));
+        $v_memory_limit = (int) $v_memory_limit;
 
         if ($last == 'g') {
             //$v_memory_limit = $v_memory_limit*1024*1024*1024;

src/PhpSpreadsheet/Writer/Xls/Worksheet.php

@@ -2837,6 +2837,8 @@ class Worksheet extends BIFFwriter
                         $type = 0x07;
                         break;
                 }
+
+                $type = (int) $type;
                 $options |= $type << 0;
 
                 // error style
@@ -2852,6 +2854,8 @@ class Worksheet extends BIFFwriter
                         $errorStyle = 0x02;
                         break;
                 }
+
+                $errorStyle = (int) $errorStyle;
                 $options |= $errorStyle << 4;
 
                 // explicit formula?
@@ -2899,6 +2903,8 @@ class Worksheet extends BIFFwriter
                         $operator = 0x07;
                         break;
                 }
+
+                $operator = (int) $operator;
                 $options |= $operator << 20;
 
                 $data = pack('V', $options);