PHP - how to read big remote files efficiently and use buffer in loop

Question

i would like to understand how to use the buffer of a read file.

Assuming we have a big file with a list of emails line by line ( delimiter is a classic \\n

Answer 1

Like already suggested in my closevotes to your question (hence CW):

You can use SplFileObject which implements Iterator to iterate over a file line by line to save memory. See my answers to

• Least memory intensive way to read a file in PHP and
• How to save memory when reading a file in Php?

for examples.