<?php strcasecmp(string $string1, string $string2): int
<?php $publicKey = $connection->getServerPublicHostKey() ?: 'no-public-key'; $fingerprint = $this->getFingerprintFromPublicKey($publicKey); if (0 !== strcasecmp($this->hostFingerprint, $fingerprint)) { throw UnableToEstablishAuthenticityOfHost::becauseTheAuthenticityCantBeEstablished($this->host); } }