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RobotsMeta.php (1.79 KB)
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Edit: RobotsMeta.php
<?php namespace Spatie\Robots; use InvalidArgumentException; class RobotsMeta { protected $robotsMetaTagProperties = []; public static function readFrom(string $source): self { $content = @file_get_contents($source); if ($content === false) { throw new InvalidArgumentException("Could not read from source `{$source}`"); } return new self($content); } public static function create(string $source): self { return new self($source); } public function __construct(string $html) { $this->robotsMetaTagProperties = $this->findRobotsMetaTagProperties($html); } public function mayIndex(): bool { return ! $this->noindex(); } public function mayFollow(): bool { return ! $this->nofollow(); } public function noindex(): bool { return $this->robotsMetaTagProperties['noindex'] ?? false; } public function nofollow(): bool { return $this->robotsMetaTagProperties['nofollow'] ?? false; } protected function findRobotsMetaTagProperties(string $html): array { $metaTagLine = $this->findRobotsMetaTagLine($html); return [ 'noindex' => $metaTagLine ? strpos(strtolower($metaTagLine), 'noindex') !== false : false, 'nofollow' => $metaTagLine ? strpos(strtolower($metaTagLine), 'nofollow') !== false : false, ]; } protected function findRobotsMetaTagLine(string $html): ?string { $lines = explode(PHP_EOL, $html); foreach ($lines as $line) { if (strpos(strtolower(trim($line)), '<meta name="robots"') === 0) { return $line; } } return null; } }
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