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<?php $Array1 = [ [ 'username' => 'uname1', 'name' => 'fullname1', 'email' => 'uname1@email.com' ], [ 'username' => 'uname2', 'name' => 'fullname2', 'email' => 'uname2@email.com' ], [ 'username' => 'uname3', 'name' => 'fullname3', 'email' => 'uname3@email.com' ], ]; $Array2 = [ [ 'username' => 'uname1', 'name' => 'fullname1', 'email' => 'uname1@email.com' ], ]; var_export( array_uintersect( $Array2, $Array1, fn($a, $b) => $a['email'] <=> $b['email'] ) ? 'email already exists' : 'no matches' );
Output for 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 - 8.5.1
'email already exists'
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.
preferences:
69.43 ms | 407 KiB | 5 Q