From 432aeb74d5a49e6f0efd1063113cef099c93aef6 Mon Sep 17 00:00:00 2001
From: murphy <murphy@rubychan.de>
Date: Mon, 28 Dec 2009 07:27:12 +0000
Subject: Copying changes and fixes for 0.9.0rc3 from terminal-encoder branch
 over to trunk.

---
 test/scanners/php/strings.in.php | 360 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 360 insertions(+)
 create mode 100644 test/scanners/php/strings.in.php

(limited to 'test/scanners/php/strings.in.php')

diff --git a/test/scanners/php/strings.in.php b/test/scanners/php/strings.in.php
new file mode 100644
index 0000000..dd6ffc7
--- /dev/null
+++ b/test/scanners/php/strings.in.php
@@ -0,0 +1,360 @@
+Single quoted
+<?php
+echo 'this is a simple string';
+
+echo 'You can also have embedded newlines in 
+strings this way as it is
+okay to do';
+
+// Outputs: Arnold once said: "I'll be back"
+echo 'Arnold once said: "I\'ll be back"';
+
+// Outputs: You deleted C:\*.*?
+echo 'You deleted C:\\*.*?';
+
+// Outputs: You deleted C:\*.*?
+echo 'You deleted C:\*.*?';
+
+// Outputs: This will not expand: \n a newline
+echo 'This will not expand: \n a newline';
+
+// Outputs: Variables do not $expand $either
+echo 'Variables do not $expand $either';
+?>
+
+Double quoted
+
+<?php
+$escape_sequences = "\n\r\t\v\f\\\$\"\000-\777\x0-\xFF";
+?>
+
+Heredoc
+
+Example #1 Invalid example
+<?php
+class foo {
+    public $bar = <<<EOT
+bar
+EOT;
+}
+?>
+
+Example #2 Heredoc string quoting example
+
+<?php
+$str = <<<EOD
+Example of string
+spanning multiple lines
+using heredoc syntax.
+EOD;
+
+/* More complex example, with variables. */
+class foo
+{
+    var $foo;
+    var $bar;
+
+    function foo()
+    {
+        $this->foo = 'Foo';
+        $this->bar = array('Bar1', 'Bar2', 'Bar3');
+    }
+}
+
+$foo = new foo();
+$name = 'MyName';
+
+echo <<<EOT
+My name is "$name". I am printing some $foo->foo.
+Now, I am printing some {$foo->bar[1]}.
+This should print a capital 'A': \x41
+EOT;
+?>
+
+The above example will output:
+
+My name is "MyName". I am printing some Foo.
+Now, I am printing some Bar2.
+This should print a capital 'A': A
+
+Example #3 Heredoc in arguments example
+
+<?php
+var_dump(array(<<<EOD
+foobar!
+EOD
+));
+?>
+
+Example #4 Using Heredoc to initialize static values
+
+<?php
+// Static variables
+function foo()
+{
+    static $bar = <<<LABEL
+Nothing in here...
+LABEL;
+}
+
+// Class properties/constants
+class foo
+{
+    const BAR = <<<FOOBAR
+Constant example
+FOOBAR;
+
+    public $baz = <<<FOOBAR
+Property example
+FOOBAR;
+}
+?>
+
+Example #5 Using double quotes in Heredoc
+
+<?php
+echo <<<"FOOBAR"
+Hello $World!
+FOOBAR;
+?>
+
+Nowdoc
+
+Example #6 Nowdoc string quoting example
+
+<?php
+$str = <<<'EOD'
+Example of string
+spanning multiple lines
+using nowdoc syntax.
+EOD;
+
+/* More complex example, with variables. */
+class foo
+{
+    public $foo;
+    public $bar;
+
+    function foo()
+    {
+        $this->foo = 'Foo';
+        $this->bar = array('Bar1', 'Bar2', 'Bar3');
+    }
+}
+
+$foo = new foo();
+$name = 'MyName';
+
+echo <<<'EOT'
+My name is "$name". I am printing some $foo->foo.
+Now, I am printing some {$foo->bar[1]}.
+This should not print a capital 'A': \x41
+EOT;
+?>
+The above example will output:
+
+My name is "$name". I am printing some $foo->foo.
+Now, I am printing some {$foo->bar[1]}.
+This should not print a capital 'A': \x41
+
+Example #7 Static data example
+
+<?php
+class foo {
+    public $bar = <<<'EOT'
+bar
+EOT;
+}
+?>
+
+Variable parsing
+
+When a string is specified in double quotes or with heredoc, variables are parsed within it.
+
+There are two types of syntax: a simple one and a complex one. The simple syntax is the most common and convenient. It provides a way to embed a variable, an array value, or an object property in a string with a minimum of effort.
+
+The complex syntax was introduced in PHP 4, and can be recognised by the curly braces surrounding the expression.
+
+Simple syntax
+
+If a dollar sign ($) is encountered, the parser will greedily take as many tokens as possible to form a valid variable name. Enclose the variable name in curly braces to explicitly specify the end of the name.
+
+<?php
+$beer = 'Heineken';
+echo "$beer's taste is great"; // works; "'" is an invalid character for variable names
+echo "He drank some $beers";   // won't work; 's' is a valid character for variable names but the variable is "$beer"
+echo "He drank some ${beer}s"; // works
+echo "He drank some {$beer}s"; // works
+?>
+Similarly, an array index or an object property can be parsed. With array indices, the closing square bracket (]) marks the end of the index. The same rules apply to object properties as to simple variables.
+
+<?php
+// These examples are specific to using arrays inside of strings.
+// When outside of a string, always quote array string keys and do not use
+// {braces}.
+
+// Show all errors
+error_reporting(E_ALL);
+
+$fruits = array('strawberry' => 'red', 'banana' => 'yellow');
+
+// Works, but note that this works differently outside a string
+echo "A banana is $fruits[banana].";
+
+// Works
+echo "A banana is {$fruits['banana']}.";
+
+// Works, but PHP looks for a constant named banana first, as described below.
+echo "A banana is {$fruits[banana]}.";
+
+// Won't work, use braces.  This results in a parse error.
+echo "A banana is $fruits['banana'].";
+
+// Works
+echo "A banana is " . $fruits['banana'] . ".";
+
+// Works
+echo "This square is $square->width meters broad.";
+
+// Won't work. For a solution, see the complex syntax.
+echo "This square is $square->width00 centimeters broad.";
+?>
+For anything more complex, you should use the complex syntax.
+
+Complex (curly) syntax
+
+This isn't called complex because the syntax is complex, but because it allows for the use of complex expressions.
+
+In fact, any value in the namespace can be included in a string with this syntax. Simply write the expression the same way as it would appear outside the string, and then wrap it in { and }. Since { can not be escaped, this syntax will only be recognised when the $ immediately follows the {. Use {\$ to get a literal {$. Some examples to make it clear:
+
+<?php
+// Show all errors
+error_reporting(E_ALL);
+
+$great = 'fantastic';
+
+// Won't work, outputs: This is { fantastic}
+echo "This is { $great}";
+
+// Works, outputs: This is fantastic
+echo "This is {$great}";
+echo "This is ${great}";
+
+// Works
+echo "This square is {$square->width}00 centimeters broad."; 
+
+// Works
+echo "This works: {$arr[4][3]}";
+
+// This is wrong for the same reason as $foo[bar] is wrong  outside a string.
+// In other words, it will still work, but only because PHP first looks for a
+// constant named foo; an error of level E_NOTICE (undefined constant) will be
+// thrown.
+echo "This is wrong: {$arr[foo][3]}"; 
+
+// Works. When using multi-dimensional arrays, always use braces around arrays
+// when inside of strings
+echo "This works: {$arr['foo'][3]}";
+
+// Works.
+echo "This works: " . $arr['foo'][3];
+
+echo "This works too: {$obj->values[3]->name}";
+
+echo "This is the value of the var named $name: {${$name}}";
+
+echo "This is the value of the var named by the return value of getName(): {${getName()}}";
+
+echo "This is the value of the var named by the return value of \$object->getName(): {${$object->getName()}}";
+?>
+It is also possible to access class properties using variables within strings using this syntax.
+
+<?php
+class foo {
+    var $bar = 'I am bar.';
+}
+
+$foo = new foo();
+$bar = 'bar';
+$baz = array('foo', 'bar', 'baz', 'quux');
+echo "{$foo->$bar}\n";
+echo "{$foo->$baz[1]}\n";
+?>
+The above example will output:
+I am bar.
+I am bar.
+
+Note: Functions, method calls, static class variables, and class constants inside {$} work since PHP 5. However, the value accessed will be interpreted as the name of a variable in the scope in which the string is defined. Using single curly braces ({}) will not work for accessing the return values of functions or methods or the values of class constants or static class variables. 
+<?php
+// Show all errors.
+error_reporting(E_ALL);
+
+class beers {
+    const softdrink = 'rootbeer';
+    public static $ale = 'ipa';
+}
+
+$rootbeer = 'A & W';
+$ipa = 'Alexander Keith\'s';
+
+// This works; outputs: I'd like an A & W
+echo "I'd like an {${beers::softdrink}}\n";
+
+// This works too; outputs: I'd like an Alexander Keith's
+echo "I'd like an {${beers::$ale}}\n";
+?>
+String access and modification by character
+
+Characters within strings may be accessed and modified by specifying the zero-based offset of the desired character after the string using square array brackets, as in $str[42]. Think of a string as an array of characters for this purpose.
+
+Note: Strings may also be accessed using braces, as in $str{42}, for the same purpose. However, this syntax is deprecated as of PHP 5.3.0. Use square brackets instead, such as $str[42].
+
+Warning
+Writing to an out of range offset pads the string with spaces. Non-integer types are converted to integer. Illegal offset type emits E_NOTICE. Negative offset emits E_NOTICE in write but reads empty string. Only the first character of an assigned string is used. Assigning empty string assigns NUL byte.
+
+Example #8 Some string examples
+<?php
+// Get the first character of a string
+$str = 'This is a test.';
+$first = $str[0];
+
+// Get the third character of a string
+$third = $str[2];
+
+// Get the last character of a string.
+$str = 'This is still a test.';
+$last = $str[strlen($str)-1]; 
+
+// Modify the last character of a string
+$str = 'Look at the sea';
+$str[strlen($str)-1] = 'e';
+
+?>
+
+String conversion to numbers
+
+<?php
+$foo = 1 + "10.5";                // $foo is float (11.5)
+$foo = 1 + "-1.3e3";              // $foo is float (-1299)
+$foo = 1 + "bob-1.3e3";           // $foo is integer (1)
+$foo = 1 + "bob3";                // $foo is integer (1)
+$foo = 1 + "10 Small Pigs";       // $foo is integer (11)
+$foo = 4 + "10.2 Little Piggies"; // $foo is float (14.2)
+$foo = "10.0 pigs " + 1;          // $foo is float (11)
+$foo = "10.0 pigs " + 1.0;        // $foo is float (11)     
+?>
+
+<?php
+echo "\$foo==$foo; type is " . gettype ($foo) . "<br />\n";
+?>
+
+If you want a parsed variable surrounded by curly braces, just double the curly braces: 
+
+<?php 
+  $foo = "bar"; 
+  echo "{{$foo}}"; 
+?>
+
+Although current documentation says 'A string literal can be specified in four different ways: ...', actually there is a fifth way to specify a (binary) string: 
+
+<?php $binary = b'This is a binary string'; ?>
-- 
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