echo suppressor

Look at the following example: Copy CodeThe code is as follows: $array = Array (+/-); function Add ( $arr) { $arr [] = 4; } Add (@ $array); Print_r ($array); /** At this point, the $array does not change, output: Array ( [0] = 1 [1] = 2 [2] = 3 ) */ Add ($array); Print_r ($array); /** With no error suppression, the output is normal: Array ( [0] = 1 [1] = 2 [2] = 3 [3] = 4 ) */ ?> This problem, I have not met before, so first to find relevant information, see if there is a ready-made answer,

This article mainly introduces the PHP error suppressor @ parsing and operator Precedence, has a certain reference value, now share to everyone, the need for friends can refer to PHP supports an error control operator: @. Any error messages that may be generated by the expression are ignored until it is placed in a PHP expression. Operator Precedence /** * Please write out the printout results in the following program * Output: 1 1 ($a =true, $

Look at the following example: Copy Code code as follows: $array = Array (1,2,3); function Add ( $arr) { $arr [] = 4; } Add (@ $array); Print_r ($array); /** At this point, the $array has not changed, the output: Array ( [0] => 1 [1] => 2 [2] => 3 ) */ Add ($array); Print_r ($array); /** Output is normal without using error suppression: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 ) */ ?> This problem, I have not enco

1. Our Baidu search or download "echo echo" in App Mall, then install echo echo in the phone after we click on this channel to add our own details as follows. 2. After entering the interface, we can click on the recording or the expression. 3. Hold down the Red recording button until the recording is complete. Th

In general, the dynamic output of HTML content in PHP is achieved through print and ECHO statements, and in practice, both print and ECHO functions are almost identical. It can be said that there is a place to use, and the other can be used. However, there is also a very important difference between the two: in the Echo function, you can output multiple strings a

. 　　 II. structure and correlation algorithm of acoustic echo CancellerWith the development of ECHO-eliminating technology, the focus of the current study of ECHO cancellation has been shifted from "Circuit echo" to "acoustic echo". 　　 (1) Treatment of surrounding environmen

We prefer to open echo echo in our mobile phone, then click on the channel to add its own content, the effect shown in the following image And then here we'll see a video or voice, and now we're going to choose one that we like. Hold down the Red recording button until the recording is complete. Then click the arrow to the right of the top right-hand corner. Record good music we can a

Echo Echo is a very interesting app, and recently, some netizens have succeeded in using the software on the computer through the Blue Finger Android simulator, and many netizens have found that they do not know where to download the songs after using Echo Echo. So how does the ech