PHP string and process control methods

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); 
} 
?> 
 
 
 
 
 
 
 
 
 
 
  
 
    
行数:
 
    
列数
 
    
雷数:
 
    
 
  
 
 
"; 
  else if($checkflag == 2)echo "太挫了，又被雷炸死了
"; 
?> 
   
 
 
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Summary: The above is the entire content of this article, I hope it will be helpful to everyone's learning.

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