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@ 2020-04-23T00:39:31Z

<?php

$array = array (
    array (
        'Rank' => 422,
        'id' => 
        array (
            0 => 152091
        ),
        'Condition' => 
        array (
            0 => 'Depression',
            1 => 'Ketamine'
        ),
        'BriefTitle' => 
        array (
            0 => 'Positron Emission Tomography Assessment of Ketamine Binding of the Serotonin Transporter'
        ),
        'LocationCountry' => 
        array (
            0 => 'Austria'
        ),
        'StartDate' => 
        array (
            0 => 'May 5, 2016'
        ),
        'LastUpdatePostDate' => 
        array (
            0 => 'October 15, 2018'
        ),
        'Entheogen' => 'ketamine',
        'Source' => 'clinicaltrials.gov'
        ),
        array (
                'Rank' => 6673,
                'id' => 
                array (
                    0 => 'YSBSZ18291'
                ),
                'Condition' => 
                array (
                    0 => 'DepressiveDisorder',
                    1 => 'Ketamine'
                ),
                'BriefTitle' => 
                array (
                    0 => 'Positron Emission Tomography assessment of Ketamine Binding of the Serotonin Transporter and its Relevance for Rapid Antidepressant Response',
                    1 => 'Die Rolle des Serotonintransporters bei der akuten antidepressiven Wirkung von Ketamin, untersucht mit Positronen-Emissions-Tomographie'
                ),
                'LocationCountry' => 
                array (
                    0 => 'Austria'
                ),
                'StartDate' => 
                array (
                    0 => '2016 05 01'
                ),
                'LastUpdatePostDate' => 
                array (
                    0 => '2018 10 15'
                ),
                'Entheogen' => 'ketamine',
                'Source' => 'clinicaltrialsregister.eu'
            )
        
);

$result = array();
$brieftitles = array();
foreach ($array as $arr) {
    $foundtitle = false;
    $title = $arr['BriefTitle'][0];
    foreach ($brieftitles as $btitle) {
        $foundtitle = (stripos($title, $btitle) !== false) || (stripos($btitle, $title) !== false);
        if ($foundtitle) break;
    }
    if (!$foundtitle) {
        $result[] = $arr;
        $brieftitles[] = $arr['BriefTitle'][0];
    }
}
print_r($result);

Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: Array ( [0] => Array ( [Rank] => 422 [id] => Array ( [0] => 152091 ) [Condition] => Array ( [0] => Depression [1] => Ketamine ) [BriefTitle] => Array ( [0] => Positron Emission Tomography Assessment of Ketamine Binding of the Serotonin Transporter ) [LocationCountry] => Array ( [0] => Austria ) [StartDate] => Array ( [0] => May 5, 2016 ) [LastUpdatePostDate] => Array ( [0] => October 15, 2018 ) [Entheogen] => ketamine [Source] => clinicaltrials.gov ) )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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