PHP string and process control methods-PHP Tutorial-php.cn

This article mainly introduces PHP string and process control methods. Interested friends can refer to it. I hope it will be helpful to everyone.

The example of this article describes a simple minesweeper game implemented in php, the details are as follows:

= 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); } ?>    扫雷游戏 
         行数: 
 列数 
 雷数: 
 
 
    "; else if($checkflag == 2)echo "太挫了，又被雷炸死了
"; ?>   
 
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