php 5.4 传引用 报错
php5.3系列版本以及以前版本,传引用没有什么问题,升级到php5.4以后,传引用的地方,全报错 Fatal error : Call-time pass-by-reference has been removed in F:\work\wamp\www\test\test.php on line 6 。看一下下面的例子。 例1,递归传引用,在php 5.3及
php5.3系列版本以及以前版本,传引用没有什么问题,升级到php5.4以后,传引用的地方,全报错
Fatal error: Call-time pass-by-reference has been removed in F:\work\wamp\www\test\test.php on line 6。看一下下面的例子。
例1,递归传引用,在php 5.3及以及版本,测试结果
<?php function test($aa,&$bb){ if($aa < $bb){ echo $bb."<br>"; $bb--; test($aa,&$bb); } } $aa = 3; $bb = 6; test($aa,&$bb); //运行结果如下 6 5 4 ?>
php 5.4以后就不行了,我是用php 5.4.11测试的。报Fatal error: Call-time pass-by-reference has been removed in F:\work\wamp\www\test\test.php on line 6。
例2,php5.4.11上面测试,只测试传引用
><?php function test($aa,&$bb){ if($aa < $bb){ $bb--; echo $bb."<br>"; //test($aa,&$bb); } } $aa = 3; $bb = 6; test($aa,$bb); //php5.4,php5.3及以前版本,输入结果是5 //test($aa,&$bb); //php5.3输入结果是5,php5.4及以后,报错Fatal error: Call-time pass-by-reference 。。。。 ?>
php5.4以后,定义时可以有&,调用时加上&就会报错。这样调用感觉很怪。
例3,php5.4以及递归传引用
><?php function test($aa,&$bb){ if($aa < $bb){ $bb--; echo $bb."<br>"; test($aa,$bb); } } $aa = 3; $bb = 6; test($aa,$bb); //php5.2,php5.3,php5.4都可以运行,运行结果: 5 4 3 ?>
感觉这个5.3升到5.4有点坑爹,如果不知道改变的,升级就很郁闷了。
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