<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Framework\Constraint;
/**
* Constraint that asserts that the string it is evaluated for begins with a
* given prefix.
*/
class StringStartsWith extends Constraint
{
/**
* @var string
*/
protected $prefix;
/**
* @param string $prefix
*/
public function __construct($prefix)
{
parent::__construct();
$this->prefix = $prefix;
}
/**
* Evaluates the constraint for parameter $other. Returns true if the
* constraint is met, false otherwise.
*
* @param mixed $other Value or object to evaluate.
*
* @return bool
*/
protected function matches($other)
{
return \strpos($other, $this->prefix) === 0;
}
/**
* Returns a string representation of the constraint.
*
* @return string
*/
public function toString()
{
return 'starts with "' . $this->prefix . '"';
}
}