本篇文章主要介绍php字符串及流程控制的方法，感兴趣的朋友参考下，希望对大家有所帮助。
本文实例讲述了php实现的简易扫雷游戏，具体如下：
<?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>总结：以上就是本篇文的全部内容，希望能对大家的学习有所帮助。
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