Maison >développement back-end >tutoriel php >Chaîne PHP et méthodes de contrôle de processus
Cet article présente principalement les méthodes de contrôle des chaînes et des processus PHP. Les amis intéressés peuvent s'y référer. J'espère qu'il sera utile à tout le monde.
L'exemple de cet article décrit un simple jeu de dragueur de mines implémenté en PHP, comme suit :
<?php $init = $_POST["init"];//game restart $clickvalue = $_POST["clickvalue"];//minesweeping $checkflag = 0;//Victory or defeat $click_count = 0;//clicks count if($init == null && $clickvalue == null){//initialization $_POST = array();//set POST with a array $_POST["rows"] = 9;//set rows $_POST["cols"] = 9;//set cols $_POST["num"] = 10;//set num $_POST["timeshow"] = "00:00"; //set starttime $init = true;//set initialization } $rows = $_POST["rows"];//get rows $cols = $_POST["cols"];//get cols $num = $_POST["num"];//get num $starttime = $_POST["starttime"];//get starttime if($init){// is initialization $timeshow = "00:00";//set starttime $data = array();//data initialization for($i=0;$i<$rows;$i++){//all the rows for($j=0;$j<$cols;$j++){//all the cols $data["data".$i."_".$j] = 0;//set mine with null $data["open".$i."_".$j] = 0;//set node with close } } $i=0;//reset the index,and set the mines(Random setting) while($i < $num){//number of mine $r = rand(0,$rows - 1);//row's index $c = rand(0,$cols - 1);//col's index if($data["data".$r."_".$c] == 0){//if not a mine $data["data".$r."_".$c] = 100;//set the node with a mine $i++; } } for($i=0;$i<$rows;$i++){//all the rows for($j=0;$j<$cols;$j++){//all the cols if($data["data".$i."_".$j] == 100)continue; //is not a mine , set number of adjacent mines $cnt = 0; if($i - 1 >= 0 && $j - 1 >= 0 && $data["data".($i - 1)."_".($j - 1)] == 100)$cnt++;//upper left if($i - 1 >= 0 && $data["data".($i - 1)."_".$j] == 100)$cnt++;//left if($i - 1 >= 0 && $j + 1 < $cols && $data["data".($i - 1)."_".($j + 1)] == 100)$cnt++;//lower left if($j - 1 >= 0 && $data["data".$i."_".($j - 1)] == 100)$cnt++;//upper if($j + 1 < $cols && $data["data".$i."_".($j + 1)] == 100)$cnt++;//lower if($i + 1 < $rows && $j - 1 >= 0 && $data["data".($i + 1)."_".($j - 1)] == 100)$cnt++;//upper right if($i + 1 < $rows && $data["data".($i + 1)."_".$j] == 100)$cnt++;//right if($i + 1 < $rows && $j + 1 < $cols && $data["data".($i + 1)."_".($j + 1)] == 100)$cnt++;//lower right $data["data".$i."_".$j] = $cnt;//set number } } }else{ $data = $_POST;//get data if($data["data".$clickvalue] == 100){ //check the value of users click $checkflag = 2;//if click on a mine,gameover for($i=0;$i<$rows;$i++){//all the rows for($j=0;$j<$cols;$j++){//all the cols $data["open".$i."_".$j] = 1; //set all nodes to open } } }else{ $node = explode("_", $clickvalue);//get the node of click openNode($node[0],$node[1]);//set nodes to open for($i=0;$i<$rows;$i++){//all the rows for($j=0;$j<$cols;$j++){//all the cols if($data["open".$i."_".$j] == 1)$click_count++; //get the number of opennode } } if($rows*$cols - $click_count == $num)$checkflag = 1; //if all the node is open,game clear } } if($checkflag == 0 && $click_count == 1){ //if game is start ,time start $starttime = date("H:i:s"); } if($starttime){//Computing time and display $now = date("H:i:s"); $nowlist = explode(":",$now); $starttimelist = explode(":",$starttime); $time_count = $nowlist[0]*3600+$nowlist[1]*60 + $nowlist[2] - ($starttimelist[0]*3600+$starttimelist[1]*60 + $starttimelist[2]); $min = floor($time_count / 60); $sec = $time_count % 60; $timeshow = ($min>9?$min:"0".$min).":".($sec>9?$sec:"0".$sec); }else{ $timeshow = "00:00";//if game is stop , time stop } function openNode($i,$j){//set nodes to open,if it is can open global $rows;//get the rows global $cols;//get the cols global $data;//get the data if($i < 0 || $i >= $rows || $j < 0 || $j >= $cols || $data["open".$i."_".$j])return; //it is not a node,or it has been opened $data["open".$i."_".$j] = 1;//open the node if($data["data".$i."_".$j] > 0)return;//need to continue? openNode($i - 1,$j - 1); openNode($i - 1,$j); openNode($i - 1,$j + 1); openNode($i,$j - 1); openNode($i,$j + 1); openNode($i + 1,$j - 1); openNode($i + 1,$j); openNode($i + 1,$j + 1); } ?> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>扫雷游戏</title> </head> <body> <form action="" method="post"> <input type="hidden" name="starttime" value="<?php echo $starttime;?>"/> <input type="hidden" name="clickvalue"/> <table style="top:10px;left:0px;z-index:0;margin:10px auto" border="1px"> <tr> <td width="100px" align="center"> <table width="100%" border="1px"> <tr><td>行数:</td><td><input type="text" name="rows" value="<?php echo $rows;?>" size="1"/></td></tr> <tr><td>列数</td><td><input type="text" name="cols" value="<?php echo $cols;?>" size="1"/></td></tr> <tr><td>雷数:</td><td><input type="text" name="num" value="<?php echo $num;?>" size="1"/></td></tr> <tr><td colspan="2" align="center"><input type="submit" value="重新开始" name="init"/></td></tr> </table> </td> <td width="50px" align="center"><font size="10px"><?php echo $checkflag < 2?"☺":"☹";?></font></td> <td width="100px" align="center"> <?php if($checkflag == 1)echo "恭喜,雷全部清掉了!<br />"; else if($checkflag == 2)echo "太挫了,又被雷炸死了<br />"; ?> <input type="text" name="timeshow" value="<?php echo $timeshow;?>" size="4" readonly > </td> </tr> </table> <table style="top:155px;left:0px;z-index:0;margin:10px auto" border="1px"> <?php for($i=0;$i<$rows;$i++){ ?> <tr> <?php for($j=0;$j<$cols;$j++){ ?> <td style="width:24px;height:24px;" align="center"> <input type="hidden" name="open<?php echo $i."_".$j;?>" value="<?php echo $data["open".$i."_".$j];?>"> <input type="hidden" name="data<?php echo $i."_".$j;?>" value="<?php echo $data["data".$i."_".$j];?>"> <?php if($data["open".$i."_".$j]){//show the value of node,if the node has been opened ?> <?php echo $data["data".$i."_".$j]==100?"☀":$data["data".$i."_".$j];?> <?php }else{//show a button ,if the node has not been opened ?> <input type="button" value="" onclick="clickNum('<?php echo $i."_".$j;?>')" style="width:20px;height:20px;"> <?php } ?> </td> <?php } ?> </tr> <?php } ?> </table> </form> <script type="text/javascript"> function clickNum(value){//click a node <?php if($checkflag > 0)echo 'return;';//if game is clear or game is over ?> document.forms[0].clickvalue.value = value; document.forms[0].submit(); } <?php if($checkflag == 0 && $click_count>0)echo 'setTimeout("timerun()",1000);';//time running ?> <?php if($checkflag == 1)echo 'alert("恭喜,雷全部清掉了!");';?> <?php if($checkflag == 2)echo 'alert("太挫了,又被雷炸死了");';?> function timerun(){//time running var timelist = document.forms[0].timeshow.value.split(":"); var sec = parseInt(timelist[1],10) + 1; var min = sec < 60?parseInt(timelist[0],10):(parseInt(timelist[0],10) + 1); document.forms[0].timeshow.value = (min>9?min:"0"+min)+":"+(sec > 9?sec:"0"+sec); setTimeout("timerun()",1000); } </script> </body> </html>
Résumé : Ce qui précède représente l'intégralité du contenu de cet article, j'espère qu'il vous sera utile à l'apprentissage de chacun.
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