什么是钥匙为PHP中的数组的最大数量 [英] What's the maximum number of keys for an array in php

问题描述

我在写一个PHP脚本，我称之为

I'm writing a php script where I call

$lines = file('base_list.txt');

打破文件成一个阵列。该文件有10多万行吧，这应该是数组10万的元素，但是当我运行

to break a file up into an array. The file has over 100,000 lines in it, which should be 100,000 elements in the array, but when I run

print_r($lines);
exit;

阵列只包含7280元素。

the array only contains 7280 elements.

所以我很好奇，跆拳道？是否有一个数组可以有钥匙的数量有限制吗？我与2GB内存双核2.0GHz的本地运行此（Vista和放大器;虽然IIS）;所以我有点糊涂了一个4MB的文件如何抛出这样的结果。

So I'm curious, WTF? Is there a limit on the amount of keys an array can have? I'm running this locally on a dual-core 2.0Ghz with 2GB of RAM (Vista & IIS though); so I'm a little confused how a 4MB file could throw results like this.

编辑：
我可能已经应该提到，我有previously设置了memory_limit到在php.ini 512MB为好。

I have probably should have mentioned that I had previously set memory_limit to 512MB in php.ini as well.

推荐答案

达里尔·海恩，

是啊，有没有在错误日志什么。我甚至增加了错误报告，仍然没有相关的print_r（）。

Yeah, there isn't anything in the error logs. I even increased error reporting and still nothing relevant to print_r().

在回应周杰伦：
我跑

In response to Jay: I ran

echo count($lines);

和我得到105546的结果，但仍然的print_r（）只显示7280.

and I get a result of 105,546 but still print_r() only displays 7280.

拍摄罗伯·沃克的建议，我环绕在阵列中的所有元素，它实际上包含了所有的结果。这使我相信这个问题是用的print_r（）本身，而不是限制数组的大小。

Taking Rob Walker's advice I looped over all the elements in the array and it actually contained all the results. This leads me to believe the issue is with print_r() itself instead of a limit to array size.

另一个奇怪的是，我想在我的REHL服务器之一，结果是理所应当的。现在，我不想责怪这在Windows / IIS，但你去那里。

Another weird thing is that I tried it on one of my REHL servers and the result was as it should be. Now I don't want to blame this on Windows/IIS but there you go.

带着我认为这个问题应该被重新评为它不再是相关的阵列，但print_r的上面。

With the above in mind I think this question should be re-titled as it's no longer relevant to arrays but print_r.

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