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<?php function posncut( $input, $delim, $x ) { $p = -1; for( $i = 0; $i !== $x; ++ $i ) { $p = strpos( $input, $delim, $p + 1 ); if( $p === false ) { return ''; } } return substr( $input, 0, $p + 1 ); } function boomcut( $input, $delim, $x ) { $a = explode( $delim, $input, $x + 1 ); array_pop( $a ); return implode( $delim, $a ) . '#'; } $str = 'Hello# m#y name # is Ala#n Colem#n'; $del = '#'; echo "posncut:\n" . posncut( $str, $del, 4 ) . "\n"; $start = microtime(true); for( $i = 0; $i < 50000; ++ $i ) { posncut( $str, $del, 4 ); } $stop = microtime(true); echo '50000 loops took ' . ($stop - $start) . " seconds\n"; echo "boomcut:\n" . boomcut( $str, $del, 4 ) . "\n"; $start = microtime(true); for( $i = 0; $i < 50000; ++ $i ) { boomcut( $str, $del, 4 ); } $stop = microtime(true); echo '50000 loops took ' . ($stop - $start) . " seconds\n"; ?>
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