try catch只会捕捉程序异常！
Db::startTrans();
try{
self::changeUserMoney($data);
Db::commit();
exit(‘success’); //返回成功 不要删除哦
}catch (Exception KaTeX parse error: Expected '}', got 'EOF' at end of input: …ts('error.txt',data.PHP_EOL,FILE_APPEND);
Db::rollback();
exit(‘fail’);
}
echo 1;
不管事务中是否出错，echo 1始终会执行；
public function index(){
Db::startTrans();
try{
Db::name(‘user’)->setDec(‘a’,1);
}catch (Exception KaTeX parse error: Expected '}', got 'EOF' at end of input: … new Exception(exception->getMessage());
Log::error($exception->getMessage());
}
dump(‘这里始终会执行！’);
}
这种情况不会执行会抛出异常！后续不会执行！
public function index(){
Db::startTrans();
try{
Db::name(‘user’)->setDec(‘a’,1);
}catch (Exception $exception){
$err = [
‘code’ => $exception->getCode(),
‘msg’ => $exception->getMessage(),
‘file’ => $exception->getFile(),
‘line’ =>
e
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p
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−
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(
)
]
;
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(
exception->getLine() ]; @file_put_contents('error.txt', json_encode(
exception−>getLine()];@fileputcontents(′error.txt′,jsonencode(err).PHP_EOL ,FILE_APPEND);
}
}
下面这种情况，如果需要手动抛出的异常可在有异常的地方处理，然后会进入到catch中然后再进行抛出。
public function index(){
Db::startTrans();
try{
self::changeUserMoney();
Db::commit();
exit(‘success’);
}catch (Exception KaTeX parse error: Expected '}', got 'EOF' at end of input: … new Exception(exception->getMessage());
$err = [
‘code’ => $exception->getCode(),
‘msg’ => $exception->getMessage(),
‘file’ => $exception->getFile(),
‘line’ =>
e
x
c
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p
t
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n
−
>
g
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L
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(
)
]
;
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(
exception->getLine() ]; @file_put_contents('error.txt', json_encode(
exception−>getLine()];@fileputcontents(′error.txt′,jsonencode(err).PHP_EOL ,FILE_APPEND);
}
}
public function changeUserMoney(){
r
e
s
=
D
b
:
:
n
a
m
e
(
′
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)
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(
"
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,
4
)
−
>
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(
[
′
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a
t
u
s
′
=
>
0
]
)
;
i
f
(
e
m
p
t
y
(
res=Db::name('salesman')->where("id",4)->update(['status'=>0]); if(empty(
res=Db::name(′salesman′)−>where("id",4)−>update([′status′=>0]);if(empty(res)){
throw new Exception(‘更新失败！’);
}
}
