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Updated is_numeric description and example
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@329671 c90b9560-bf6c-de11-be94-00142212c4b1
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@ -15,11 +15,12 @@
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<methodparam><type>mixed</type><parameter>var</parameter></methodparam>
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</methodsynopsis>
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<para>
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Finds whether the given variable is numeric. Numeric strings consist of
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optional sign, any number of digits, optional decimal part and optional
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exponential part. Thus <literal>+0123.45e6</literal> is a valid numeric
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value. Hexadecimal notation (<literal>0xFF</literal>) is allowed too but
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only without sign, decimal and exponential part.
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Finds whether the given variable is numeric. Numeric strings consist of optional
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sign, any number of digits, optional decimal part and optional exponential part.
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Thus <literal>+0123.45e6</literal> is a valid numeric value. Hexadecimal (e.g.
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<literal>0xf4c3b00c</literal>), Binary (e.g. <literal>0b10100111001</literal>),
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Octal (e.g. <literal>0777</literal>) notation is allowed too but only without
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sign, decimal and exponential part.
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</para>
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</refsect1>
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@ -58,7 +59,10 @@
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$tests = array(
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"42",
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1337,
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"1e4",
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0x539,
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02471,
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0b10100111001,
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1337e0,
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"not numeric",
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array(),
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9.1
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@ -79,7 +83,10 @@ foreach ($tests as $element) {
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<![CDATA[
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'42' is numeric
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'1337' is numeric
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'1e4' is numeric
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'1337' is numeric
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'1337' is numeric
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'1337' is numeric
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'1337' is numeric
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'not numeric' is NOT numeric
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'Array' is NOT numeric
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'9.1' is numeric
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