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<?php $array1 = [ ["Paris SG", "Brest", "Monaco", "Nizza", "Lilla", "Lens", "Sturm Graz"], ["Marsiglia", "Rennes", "Reims", "Lione", "Tolosa", "Strasburgo"], ["Le Havre", "Montpellier", "Lorient", "Nantes", "Metz", "Clermont"], ]; $array2 = [ "Sturm Graz", "Rennes", "Sturm Graz", "Reims", "Tolosa", "Le Havre", "Paris SG", "Lione", "Clermont", "Montpellier", "Lorient", "Strasburgo" ]; $result = []; foreach ($array1 as $row) { foreach ($row as $val) { $i = array_search($val, $array2); if ($i !== false) { unset($array2[$i]); $result[] = $val; } } } var_export($array2); echo "\n---\n"; var_export($result);
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.29, 8.4.1 - 8.4.14, 8.4.16 - 8.4.17, 8.5.0 - 8.5.2
array ( 2 => 'Sturm Graz', ) --- array ( 0 => 'Paris SG', 1 => 'Sturm Graz', 2 => 'Rennes', 3 => 'Reims', 4 => 'Lione', 5 => 'Tolosa', 6 => 'Strasburgo', 7 => 'Le Havre', 8 => 'Montpellier', 9 => 'Lorient', 10 => 'Clermont', )
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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