1 | <?php |
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2 | // gc_enable(); |
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3 | |
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4 | /** |
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5 | * Test single quotes |
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6 | * @return float microtime |
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7 | */ |
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8 | function single_quotes() { |
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9 | $blog_id = 12345; |
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10 | $key = 'blog_charset'; |
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11 | $i = 0; |
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12 | $tmp = array(); |
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13 | // gc_collect_cycles(); |
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14 | |
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15 | $start = microtime( true ); |
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16 | while ( $i < 10000 ) { |
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17 | $tmp[] = $blog_id . '-' . $key . '-blog_option'; |
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18 | ++$i; |
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19 | } |
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20 | |
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21 | return ( microtime( true ) - $start ); |
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22 | } |
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23 | |
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24 | /** |
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25 | * Test double quotes |
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26 | * @return float microtime |
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27 | */ |
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28 | function double_quotes() { |
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29 | $blog_id = 12345; |
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30 | $key = "blog_charset"; |
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31 | $i = 0; |
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32 | $tmp = array(); |
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33 | // gc_collect_cycles(); |
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34 | |
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35 | $start = microtime( true ); |
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36 | while ( $i < 10000 ) { |
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37 | $tmp[] = $blog_id . "-" . $key . "-blog_option"; |
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38 | ++$i; |
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39 | } |
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40 | |
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41 | return ( microtime( true ) - $start ); |
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42 | } |
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43 | |
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44 | $single = array(); |
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45 | $double = array(); |
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46 | $i = 0; |
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47 | |
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48 | while ( $i < 1000 ) { |
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49 | // try to randomize any GC bias |
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50 | if ( ($i % 2) === 1 ) { |
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51 | $double[] = double_quotes(); |
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52 | $single[] = single_quotes(); |
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53 | } else { |
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54 | $single[] = single_quotes(); |
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55 | $double[] = double_quotes(); |
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56 | } |
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57 | ++$i; |
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58 | } |
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59 | unset( $i ); |
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60 | |
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61 | echo 'Total iterations: ' . count( $single ) . PHP_EOL . PHP_EOL; |
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62 | |
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63 | $total_single = array_sum( $single ); |
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64 | echo "Total single: $total_single" . PHP_EOL; |
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65 | |
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66 | $total_double = array_sum( $double ); |
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67 | echo "Total double: $total_double" . PHP_EOL; |
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68 | if ( $total_single < $total_double ) |
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69 | echo 'Single-quoted string solution completed ' . ( $total_double - $total_single ) . ' microseconds faster.' . PHP_EOL; |
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70 | else |
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71 | echo 'Double-quoted string solution completed ' . ( $total_single - $total_double ) . ' microseconds faster.' . PHP_EOL; |
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72 | |
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73 | echo PHP_EOL; |
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74 | |
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75 | echo 'Average single: ' . ( $total_single / count( $single ) ) . PHP_EOL; |
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76 | echo 'Average double: ' . ( $total_double / count( $double ) ) . PHP_EOL; |
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77 | |
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78 | ?> |
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