在PHP函数内爆可能的限制 [英] possible limitation of implode function in PHP

问题描述

我有以下的code，因为我预期没有返回。我希望最后的结果将是一个字符串：

I have the following code that is not returning as I expected. I was hoping the final result would be a string:

$organizers = array_unique($organizers);     // this returns correctly
$organizers = implode(', ', $organizers);    // this returns nothing
var_dump($organizers);                        // no data appears here
exit;

的 array_unique（）函数正确返回的数据，我可以看到它返回的数组。要启动时， $主办方数组是字符串都在20个字符长度的小一个简单的一维数组。我认为这个问题可能是 $主办方 1万多指数长。是否有可崩盘在一个数组的长度的限制？是否有变通是什么？我找不到手册中任何东西，但我已经彻底测试此code，我相信，误差必须在破灭（）。

The array_unique() function is returning data correctly and I can see the array it returns. To start, the $organizers array is a simple 1-D array of strings that all have small lengths under 20 chars. I think the issue might be that $organizers is more than 10,000 indices long. Are there limitations on the length of an array that can be imploded? Are there work-arounds for that? I cannot find anything in the manual, but I have tested this code thoroughly and I believe the error must be on implode().

推荐答案

我不'知道是否有一个限制，但是在我脑海中是taht你也在改变着一个数组转换为字符串。这不应该是在PHP中的问题，但尝试调用一个不同的变量破灭的结果？

I dont' know if there is a limitation, but what comes to my mind is taht you are also transforming an array into a string. This shouldn't be the problem in PHP, but try calling it a different variable for the result of implode?

$organizers        = array_unique($organizers);     // this returns correctly
$organizers_string = implode(', ', $organizers);    // this returns nothing

// This gives it a different space 

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