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IntlChar::islower
(PHP 7)
IntlChar::islower — Check if code point is a lowercase letter
Description
Determines whether the specified code point has the general category "Ll" (lowercase letter).
Note:
This misses some characters that are also lowercase but have a different general category value. In order to include those, use IntlChar::isULowercase().
Parameters
Examples
Example #1 Testing different code points
<?php
var_dump(IntlChar::islower("A"));
var_dump(IntlChar::islower("a"));
var_dump(IntlChar::islower("Φ"));
var_dump(IntlChar::islower("φ"));
var_dump(IntlChar::islower("1"));
?>
The above example will output:
bool(false) bool(true) bool(false) bool(true) bool(false)
See Also
- IntlChar::isupper() - Check if code point has the general category "Lu" (uppercase letter)
- IntlChar::istitle() - Check if code point is a titlecase letter
- IntlChar::tolower() - Make Unicode character lowercase
- IntlChar::toupper() - Make Unicode character uppercase
IntlChar::PROPERTY_LOWERCASE
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Steph