PHP exercise questions 2 PHP exercise projects PHP program exercises PHP code exercises-PHP Tutorial-php.cn

PHP exercise questions 2 PHP exercise projects PHP program exercises PHP code exercises

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Release： 2016-07-29 08:53:43

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Procedure 6.
Question: Assume that someone has 100,000 cash and needs to pay a fee every time he passes through an intersection. The payment rule is that when his cash is greater than 50,000, he needs to pay %5 each time, and if his cash is less than or equal to 50,000, he needs to pay %5 every time. Pay 5,000. Ask this person how many times he can pass this intersection.

<span> 1</span><span>$money</span> = 100000<span>;
</span><span> 2</span><span>$i</span> = 0<span>;
</span><span> 3</span><span>while</span>(<span>$money</span> >= 5000<span>) {
</span><span> 4</span><span>if</span>( <span>$money</span> > 50000<span>) {
</span><span> 5</span><span>$money</span> *= 95/100<span>;
</span><span> 6</span>     } <span>else</span><span>if</span>( <span>$money</span> <= 50000<span>) {
</span><span> 7</span><span>$money</span> -= 5000<span>;
</span><span> 8</span><span>    }
</span><span> 9</span><span>$i</span>++<span>;
</span><span>10</span><span>}
</span><span>11</span><span>echo</span> '可以经过' . <span>$i</span> . '次路口<br/>';

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Procedure 7.
Title: Print the multiplication table

<span>1</span><span>for</span>(<span>$i</span> = 1; <span>$i</span> < 10; <span>$i</span>++<span>) {
</span><span>2</span><span>for</span>(<span>$j</span> = 1; <span>$j</span> <= <span>$i</span>; <span>$j</span>++<span>) {
</span><span>3</span><span>echo</span><span>$j</span> . 'x' . <span>$i</span> . '=' . <span>$i</span>*<span>$j</span> . '  '<span>;
</span><span>4</span><span>    }
</span><span>5</span><span>echo</span> '<br/>'<span>;
</span><span>6</span> }

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Program 8.
Title: Hundreds of coins and a hundred chickens, a rooster costs 5 cents a piece, a hen costs 3 cents a piece There are three chickens for 1 penny. If you buy 100 chickens for 100 penny, how many roosters, hens and chicks are there?

<span> 1</span><span>$x1</span> = 0; <span>//</span><span>公鸡个数</span><span> 2</span><span>$x2</span> = 0; <span>//</span><span>母鸡个数</span><span> 3</span><span>$x3</span> = 0; <span>//</span><span>小鸡个数</span><span> 4</span><span>for</span>( <span>$x1</span> = 1; <span>$x1</span> <= 20; <span>$x1</span>++<span>) {
</span><span> 5</span><span>for</span>( <span>$x2</span> = 1; <span>$x2</span> <= (33-<span>$x1</span>); <span>$x2</span>++<span>) {
</span><span> 6</span><span>$x3</span> = 100 - <span>$x1</span> - <span>$x2</span><span>;
</span><span> 7</span><span>if</span>( 100 == (<span>$x1</span>*5 + <span>$x2</span>*3 + <span>$x3</span>/3<span>) ) {
</span><span> 8</span><span>echo</span> '公鸡个数为：' . <span>$x1</span> . '母鸡个数为：' . <span>$x2</span> . '小鸡个数为' . <span>$x3</span> . '<br/>'<span>;
</span><span> 9</span><span>        }
</span><span>10</span><span>    }
</span><span>11</span> }

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Program 9.
Title: Find the prime numbers from 1 to 100

<span> 1</span><span>$num</span> = 2<span>;
</span><span> 2</span><span>while</span>(<span>$num</span> <= 100<span>) {
</span><span> 3</span><span>if</span>( <span>$num</span> <= 3<span>) {
</span><span> 4</span><span>echo</span><span>$num</span> . '  '<span>;
</span><span> 5</span>     } <span>else</span><span> {
</span><span> 6</span><span>for</span>( <span>$j</span> = 2; <span>$j</span> <= <span>$num</span>; <span>$j</span>++<span>) {
</span><span> 7</span><span>if</span>( <span>$j</span> == <span>$num</span><span> ) {
</span><span> 8</span><span>echo</span><span>$num</span> . '  '<span>;
</span><span> 9</span>             } <span>else</span><span>if</span>( <span>$num</span>%<span>$j</span> == 0<span>) {
</span><span>10</span><span>break</span><span>;
</span><span>11</span><span>            }
</span><span>12</span><span>        }
</span><span>13</span><span>    }
</span><span>14</span><span>$num</span>++<span>;
</span><span>15</span> }

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The above introduces the second PHP exercise, including PHP and exercises. I hope it will be helpful to friends who are interested in PHP tutorials.