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@@ -440,7 +440,7 @@ bar

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</programlisting>

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</example>

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<example>

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<title>Valid example, even if prior to PHP 7.3.0</title>

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+

<title>Valid example, even prior to PHP 7.3.0</title>

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<programlisting role="php">

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<!-- This is a VALID example -->

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<![CDATA[

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@@ -721,11 +721,14 @@ EOT;

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<?php

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$juice = "apple";

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echo "He drank some $juice juice.".PHP_EOL;

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echo "He drank some $juice juice." . PHP_EOL;

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// Unintended. "s" is a valid character for a variable name, so this refers to $juices, not $juice.

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echo "He drank some juice made of $juices.";

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echo "He drank some juice made of $juices." . PHP_EOL;

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// Explicitly specify the end of the variable name by enclosing the reference in braces.

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echo "He drank some juice made of {$juice}s.";

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?>

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]]>

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</programlisting>

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@@ -863,9 +866,9 @@ echo "This works: {$arr['key']}";

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echo "This works: {$arr[4][3]}";

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// This is wrong for the same reason as $foo[bar] is wrong outside a string.

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// In other words, it will still work, but only because PHP first looks for a

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// constant named foo; an error of level E_NOTICE (undefined constant) will be

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// thrown.

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// PHP first looks for a constant named foo, and throws an error if not found.

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// If the constant is found, its value (and not 'foo' itself) would be used

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// for the array index.

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echo "This is wrong: {$arr[foo][3]}";

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// Works. When using multi-dimensional arrays, always use braces around arrays

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