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Revision 5351516d3e9b77fe4b0225c0b52883a718c4c0be authored by Andrew Brown on 12 November 2019, 14:40:39 UTC, committed by Taylor Otwell on 12 November 2019, 14:40:39 UTC 
update Model dirty check (#30565)
 
for attributes that are cast to any type of Object, the strict equivalency (`===`) will never return `true`, because even though the values may be equal, the Object there reference will be different.

this changes checks if the cast type is either `object` or `collection`, both with return Objects, and uses loose equivalency to compare them.

even though date casting also returns an Object, we don't need to handle that since it's handled in the previous conditional.

the test represents a scenario that occurs when using JSON fields in MySQL. MySQL returns the value with spaces between the elements, but `json_encode` returns a string **without** spaces between the elements.
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Raw File
DetectsLostConnections.php 
<?php

namespace Illuminate\Database;

use Illuminate\Support\Str;
use Throwable;

trait DetectsLostConnections
{
    /**
     * Determine if the given exception was caused by a lost connection.
     *
     * @param  \Throwable  $e
     * @return bool
     */
    protected function causedByLostConnection(Throwable $e)
    {
        $message = $e->getMessage();

        return Str::contains($message, [
            'server has gone away',
            'no connection to the server',
            'Lost connection',
            'is dead or not enabled',
            'Error while sending',
            'decryption failed or bad record mac',
            'server closed the connection unexpectedly',
            'SSL connection has been closed unexpectedly',
            'Error writing data to the connection',
            'Resource deadlock avoided',
            'Transaction() on null',
            'child connection forced to terminate due to client_idle_limit',
            'query_wait_timeout',
            'reset by peer',
            'Physical connection is not usable',
            'TCP Provider: Error code 0x68',
            'ORA-03114',
            'Packets out of order. Expected',
            'Adaptive Server connection failed',
            'Communication link failure',
            'connection is no longer usable',
            'Login timeout expired',
        ]);
    }
}
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