Php manual sizeof

When it gets into the last GB, it halves the size whenever the read fails. The last couple of bytes are just read in. Unless you are working with multi-petabyte files in PHP or the code is executing on strange hardware, this function is going to be more than sufficient. Every part of this function has been carefully crafted to deal with bit deficiencies.

Here's the best way that I've found to get the size of a remote file. Note that HEAD requests don't get the actual body of the request, they just retrieve the headers.

Here a function to get the size of a file in a human understanding way with decimal separator, thousand separator, decimals This is an updated version of my previous filesize2bytes. The return type now it's really an int. Under Windows 10 filesize obviously cannot work with relative path names. Use absolute path instead. They won't work correctly unless given an absolute path. They are identical according to sizeof.

In the absence of any reason to worry about "faster", always optimize for the human. Which makes more sense to the human reader? According to the website, sizeof is an alias of count , so they should be running the same code. Perhaps sizeof has a little bit of overhead because it needs to resolve it to count? It should be very minimal though. I know this is old but just wanted to mention that I tried this with PHP 7.

Both are used to count elements in a array. However, count function is faster and better than sizeof. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. PHP array: count or sizeof? Ask Question. Asked 11 years, 2 months ago. Active 8 months ago. Viewed k times. Edit Thanks to Andy Lester, I have refined my question to mean from a multilingual perspective.

The manual commenters say "[sizeof] does not mean the same in many other languages based on C" Is this true? I am the Most Stupid Person 2, 7 7 gold badges 20 20 silver badges 43 43 bronze badges.

Ben Ben A Daft Punk reference Very nice question. Add a comment. Active Oldest Votes. Caution count may return 0 for a variable that isn't set, but it may also return 0 for a variable that has been initialized with an empty array.

Use isset to test if a variable is set. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What happen if I try to get sizeof an undefined variable?

PHP Ask Question. Asked 4 years, 11 months ago. Active 4 years, 11 months ago. Viewed times. PHP What happen if I try to get an undefined variable size with sizeof method? What's the value? Sorry for my bad English. Narendrasingh Sisodia Is this a serious question or are you just taking the micky. As you can see from your output.