IntlChar::isdigit

(PHP 7)

IntlChar::isdigit — Check if code point is a digit character

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public static IntlChar::isdigit ( mixed $codepoint ) : bool

Determines whether the specified code point is a digit character.

TRUE for characters with general category "Nd" (decimal digit numbers). Beginning with Unicode 4, this is the same as testing for the Numeric_Type of Decimal.

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codepoint

The integer codepoint value (e.g. 0x2603 for U+2603 SNOWMAN), or the character encoded as a UTF-8 string (e.g. "\u{2603}")

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Returns TRUE if codepoint is a digit character, FALSE if not.

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Example #1 Testing different code points

<?php
var_dump(IntlChar::isdigit("A"));
var_dump(IntlChar::isdigit("1"));
var_dump(IntlChar::isdigit("\t"));
?>

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bool(false)
bool(true)
bool(false)

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