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<?php $accountNumber = "NRAITCHEFF"; $analyticsClasses = "N1234567F"; var_dump( strpos( $analyticsClasses, substr($accountNumber, 0, 1) ), is_numeric(strpos( $analyticsClasses, substr($accountNumber, 0, 1) )) );

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52.56 ms | 402 KiB | 5 Q