com presentations: Drop 7.0 feature slide: phpkonf.html phpkonf.xml

diff --git a/phpkonf.html b/phpkonf.html
index f643588..97a95a4 100644
--- a/phpkonf.html
+++ b/phpkonf.html
@@ -420,228 +420,6 @@ $ make -j8 prof-use</code></pre>
 		<h1 style="text-align:center;">Upgrade to PHP 7!</h1>
 		</section>	</section>
 	<section>
-		<section id="php7">
-		<img src="/presentations/slides/intro/php7trans-200.png"  width="" height="">
-		<p class="p" style="font-size:1.1em;text-align:left;">engine improvements</p>
-		<ul>
-			<li style="font-size: 1em;">100%+ performance gain on most real-world applications</li>
-			<li style="font-size: 1em;">Lower memory usage, sometimes drastically lower</li>
-		</ul>
-		</section>
-<section id="php7excep">
-		<p class="p" style="font-size:1.1em;text-align:left;">Exceptions on Fatals</p>
-		<pre><code data-trim style="font-size:1.1em;" >function call_method($obj) {
-    $obj-&gt;method();
-}
-call_method(null);</code></pre>
-		<pre><code class="shell nohighlight" data-trim style="font-size:0.85em;" >Fatal error: Uncaught Error: Call to a member function method() on null in file:2
-Stack trace:
-#0 file(4): call_method(NULL)
-#1 {main}
-  thrown in file on line 2</code></pre>
-		<pre><code data-trim style="font-size:1.1em;" >try {
-    call_method(null);
-} catch (Error $e) {
-    echo &quot;Caught Exception: {$e-&gt;getMessage()}\n&quot;;
-}</code></pre>
-		<pre><code class="shell nohighlight" data-trim style="font-size:0.85em;" >Caught Exception: Call to a member function method() on null</code></pre>
-		</section>
-<section id="php7hier">
-		<p class="p" style="font-size:2em;text-align:center;">PHP 7 Exception Hierarchy</p>
-<br/>
-		<ul>
-			<li style="font-size: 1.5em;list-style-type: none;"><font color="ab5c5c">Throwable</font></li>
-			<li style="font-size: 1.25em;margin-left: 2em;list-style-type: none;">➥ <font color="ab5c5c">Exception</font> implements Throwable</li>
-			<li style="font-size: 1.25em;margin-left: 2em;list-style-type: none;">➥ <font color="ab5c5c">Error</font> implements Throwable</li>
-			<li style="font-size: 1em;margin-left: 4em;list-style-type: none;">➥ <font color="ab5c5c">TypeError</font> extends Error</li>
-			<li style="font-size: 1em;margin-left: 4em;list-style-type: none;">➥ <font color="ab5c5c">ParseError</font> extends Error</li>
-		</ul>
-		</section>
-<section id="php7ret">
-		<p class="p" style="font-size:1.1em;text-align:left;">Return Types</p>
-		<pre><code data-trim style="font-size:1.1em;" >function get_config(): array {
-    return 42;
-}
-get_config();</code></pre>
-		<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >Fatal error: Uncaught TypeError: Return value of get_config() must be
-of the type array, integer returned in file:2
-Stack trace:
-#0 file(4): get_config()
-#1 {main}
-  thrown in file on line 2</code></pre>
-		</section>
-<section id="php7STH">
-		<p class="p" style="font-size:1.1em;text-align:left;">Coercive Scalar Types</p>
-		<pre><code data-trim style="font-size:1.1em;" >function logmsg(string $msg, int $level, float $severity) {
-    var_dump($msg);      // string(1) &quot;1&quot;
-    var_dump($level);    // int(2)
-    var_dump($severity); // float(3)
-}
-logmsg(1, &quot;2.5 bananas&quot;, 3);</code></pre>
-		<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >Notice: A non well formed numeric value encountered in file on line 2</code></pre>
-		<p class="p" style="font-size:1.1em;text-align:left;">Strict Scalar Types</p>
-		<pre><code data-trim style="font-size:1.1em;" >declare(strict_types=1);
-...
-logmsg(1, &quot;2.5&quot;, 3);</code></pre>
-		<pre><code class="shell nohighlight" data-trim style="font-size:0.9em;" >Fatal error: Uncaught TypeError: Argument 1 passed to logmsg() must be of the
-type string, integer given, called in file on line 7 and defined in file:3
-Stack trace:
-#0 file(7): logmsg(1, '2.5', 3)
-#1 {main}
-  thrown in file on line 2</code></pre>
-		</section>
-<section id="php7anon">
-		<p class="p" style="font-size:1.1em;text-align:left;">Anonymous Classes</p>
-		<pre><code data-trim style="font-size:1.2em;" >return new class($controller) implements Page {
-    public function __construct($controller) {
-        /* ... */
-    }
-    /* ... */
-};
-
-class MyObject extends MyStuff {
-    public function getInterface() {
-        return new class implements MyInterface {
-            /* ... */
-        };
-    }
-}</code></pre>
-		</section>
-<section id="php7coalesce">
-		<p class="p" style="font-size:1.1em;text-align:left;">Coalesce Operator</p>
-		<pre><code data-trim style="font-size:1.5em;" >$a = NULL;
-$b = 0;
-$c = 2;
-
-echo $a ?? $b; // 0
-echo $c ?? $b; // 2
-echo $a ?? $b ?? $c; // 0
-echo $a ?? $x ?? $c; // 2</code></pre>
-		</section>
-<section id="Spaceship">
-		<p class="p" style="font-size:1.1em;text-align:left;">Spaceship Operator</p>
-		<img src="/presentations/slides/intro/lego-php-astronaut.png"  width="230" height="345">
-		<pre><code data-trim style="font-size:1.1em;" >function cmp_php5($a, $b) {
-    return ($a &lt; $b) ? -1 : (($a &gt;$b) ? 1 : 0);
-}
-
-function cmp_php7($a, $b) {
-    return $a &lt;=&gt; $b;
-}</code></pre>
-		</section>
-<section id="php7cleanups">
-		<p class="p" style="font-size:1.1em;text-align:left;">Removal of many deprecated features<BR/>
-     (Your PHP4 code will break!)</p>
-		<pre><code data-trim >- ext/ereg (use ext/pcre instead)
-- preg_replace() eval modifier (use preg_replace_callback() instead)
-- ext/mysql (use ext/mysqli or ext/pdo_mysql instead)
-- Assignment of new by reference
-- Scoped calls of non-static methods from incompatible $this context
-
-- dl() in php-fpm
-- set_magic_quotes_runtime() and magic_quotes_runtime()
-- set_socket_blocking() (use stream_set_blocking() instead)
-- mcrypt_generic_end() (use mcrypt_generic_deinit() instead)
-- mcrypt_ecb, mcrypt_cbc, mcrypt_cfb and mcrypt_ofb 
-  (use mcrypt_encrypt() and mcrypt_decrypt() instead)
-- datefmt_set_timezone_id() and IntlDateFormatter::setTimeZoneID() 
-  (use datefmt_set_timezone() or IntlDateFormatter::setTimeZone() instead)
-
-- xsl.security_prefs (use XsltProcessor::setSecurityPrefs() instead)
-- iconv.input_encoding, iconv.output_encoding, iconv.internal_encoding,
-  mbstring.http_input, mbstring.http_output and mbstring.internal_encoding
-  (use php.input_encoding, php.internal_encoding and php.output_encoding instead)
-
-- $is_dst parameter of the mktime() and gmmktime() functions
-- # style comments in ini files (use ; style comments instead)
-- String category names in setlocale() (use LC_* constants instead)
-- Unsafe curl file uploads (use CurlFile instead)
-- PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT driver option 
-  (use PDO::ATTR_EMULATE_PREPARES instead)
-- CN_match and SNI_server_name stream context option (use peer_name instead)</code></pre>
-		</section>
-<section id="php7reserved">
-		<p class="p" style="font-size:1.1em;text-align:left;">New reserved words:</p>
-		<ul>
-			<li style="font-size: 1em;list-style-type: none;">bool</li>
-			<li style="font-size: 1em;list-style-type: none;">int</li>
-			<li style="font-size: 1em;list-style-type: none;">float</li>
-			<li style="font-size: 1em;list-style-type: none;">string</li>
-			<li style="font-size: 1em;list-style-type: none;">null</li>
-			<li style="font-size: 1em;list-style-type: none;">false</li>
-			<li style="font-size: 1em;list-style-type: none;">true</li>
-			<li style="font-size: 1em;list-style-type: none;">resource</li>
-			<li style="font-size: 1em;list-style-type: none;">object</li>
-			<li style="font-size: 1em;list-style-type: none;">mixed</li>
-			<li style="font-size: 1em;list-style-type: none;">numeric</li>
-		</ul>
-		</section>
-<section id="php7num">
-		<p class="p" style="font-size:1.1em;text-align:left;">64-bit integer support on Windows</p>
-		<p class="p" style="font-size:1.1em;text-align:left;">Cleanup edge-case integer overflow/underflow</p>
-		<p class="p" style="font-size:1.1em;text-align:left;">Support for strings with length >= 2^31 bytes in 64 bit builds.</p>
-		<p class="p" style="font-size:1.1em;text-align:left;">Parse error on invalid numeric literals</p>
-		<pre><code data-trim >$mask = 0855;  // Parse error: Invalid numeric literal</code></pre>
-		</section>
-<section id="php7UVS">
-		<p class="p" style="font-size:1.1em;text-align:left;">Uniform variable syntax</p>
-		<pre><code data-trim >// left-to-right
-$this-&gt;$belongs_to['column']
-// vs.
-$this-&gt;{$belongs_to['column']}
-
-// support missing combinations of operations
-$foo()['bar']()
-[$obj1, $obj2][0]-&gt;prop
-getStr(){0}
- 
-// support nested ::
-$foo['bar']::$baz
-$foo::$bar::$baz
-$foo-&gt;bar()::baz()
- 
-// support nested ()
-foo()()
-$foo-&gt;bar()()
-Foo::bar()()
-$foo()()
- 
-// support operations on arbitrary (...) expressions
-(...)['foo']
-(...)-&gt;foo
-(...)-&gt;foo()
-(...)::$foo
-(...)::foo()
-(...)()
- 
-// two more practical examples for the last point
-(function() { ... })()
-($obj-&gt;closure)()
- 
-// support all operations on dereferencable scalars
-// (not very useful)
-&quot;string&quot;-&gt;toLower()
-[$obj, 'method']()
-'Foo'::$bar</code></pre>
-		</section>
-<section id="php7unicode">
-		<p class="p" style="font-size:1.1em;text-align:left;">Unicode Codepoint Escape Syntax</p>
-		<pre><code data-trim style="font-size:1.2em;" >echo &quot;\u{202E}Right-to-left text&quot;;
-
-echo &quot; \u{26BD}&quot;;</code></pre>
-		<pre class="output" style="font-size:1.2em;">‮Right-to-left text ⚽		</pre>		<p class="p" style="font-size:1.1em;text-align:left;">ICU IntlChar class added to intl extension</p>
-		</section>
-<section id="php7csprng">
-		<p class="p" style="font-size:1.1em;text-align:left;">CSPRNG</p>
-		<pre><code data-trim style="font-size:1.2em;" >$int   = random_int(-500, 500);
-$bytes = random_bytes(10);
-
-var_dump( $int );
-var_dump( bin2hex($bytes) );</code></pre>
-		<pre class="output" style="font-size:1.2em;">int(98)
-string(20) "1fe3d208d5e341b0acce"
-		</pre>		</section>	</section>
-	<section>
 		<section id="php71">
 		<h1 style="text-align:center;">PHP 7.1</h1>
 		</section>
diff --git a/phpkonf.xml b/phpkonf.xml
index d025528..8df3b66 100644
--- a/phpkonf.xml
+++ b/phpkonf.xml
@@ -39,7 +39,6 @@
 <slide>slides/intro/php7prod.xml</slide>
 <slide>slides/intro/web_impact.xml</slide>
 
-<slide>slides/intro/php7_2017.xml</slide>
 <slide>slides/intro/php71_2017.xml</slide>
 <slide>slides/intro/phan_2017.xml</slide>
 <slide>slides/intro/phan_ts.xml</slide>