johnnycmj
diff --git a/‎php/15_binary/binary.php‎
Lines changed: 5 additions & 1 deletion b/‎php/15_binary/binary.php‎
Lines changed: 5 additions & 1 deletion
@@ -86,7 +86,11 @@ function squareRoot($number)
 function getDecimalPlaces($number)
 {
  $temp = explode('.', $number);
- return strlen($temp[1]);
+ if (isset($temp[1])) {
+ return strlen($temp[1]);
+ }
+
+ return 0;
 }
 
 // 测试二分查找给定值
Original file line number	Diff line number	Diff line change
`@@ -86,7 +86,11 @@ function squareRoot($number)`
`86`	`86`	`function getDecimalPlaces($number)`
`87`	`87`	`{`
`88`	`88`	`$temp = explode('.', $number);`
`89`		`- return strlen($temp[1]);`
	`89`	`+ if (isset($temp[1])) {`
	`90`	`+ return strlen($temp[1]);`
	`91`	`+ }`
	`92`	`+`
	`93`	`+ return 0;`
`90`	`94`	`}`
`91`	`95`
`92`	`96`	`// 测试二分查找给定值`