Online PHP editor | refs for iPMOV

<?php function Conv( $a, $s ) { switch ( $s ) { case 'k': { $s = 1; $t = 'KB'; } break; case 'm': { $s = 2; $t = 'MB'; } break; case 'g': { $s = 3; $t = 'GB'; } break; case 't': { $s = 4; $t = 'TB'; } break; default: { $s = 0; $t = 'B'; } break; } return [ $a * pow( 1024, $s ), $t ]; // gives "A non well formed numeric value encountered" } var_dump( Conv("3", "k") ); var_dump( Conv("3k", "k") );