Alpha::__invoke()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 9
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 5
CRAP Score 2

Importance

Changes 1
Bugs 0 Features 0
Metric Value
dl 0
loc 9
ccs 5
cts 5
cp 1
rs 9.6666
c 1
b 0
f 0
cc 2
eloc 5
nc 2
nop 2
crap 2
1
<?php
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/**
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 *
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 * This file is part of Aura for PHP.
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 *
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 * @license http://opensource.org/licenses/bsd-license.php BSD
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 *
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 */
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namespace Aura\Filter\Rule\Validate;
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/**
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 *
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 * Validates that the value is letters only (upper or lower case).
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 *
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 * @package Aura.Filter
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 *
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 */
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class Alpha
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{
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    /**
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     *
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     * Validates that the value is letters only (upper or lower case).
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     *
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     * @param object $subject The subject to be filtered.
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     *
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     * @param string $field The subject field name.
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     *
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     * @return bool True if valid, false if not.
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     *
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     */
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    public function __invoke($subject, $field)
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    {
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        $value = $subject->$field;
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        if (! is_scalar($value)) {
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            return false;
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        }
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        return (bool) preg_match('/^[\p{L}]+$/u', $value);
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    }
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}
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