Use memory comparison with PHP to process files and regular analysis files

$file = "Example.txt"; 100,000 rows of data

Function: Reads each line in the file and outputs

Method One: General method

$fp = fopen ($file, "R");
while (!feof ($fp)) {
$line = fgets ($fp, 1024);

}
Fclose ($FP);

Using Memory: Byte

Method Two: Use the co-process

function Getline ($file) {
$fp = fopen ($file, "R");
while (!feof ($fp)) {
$line = fgets ($fp, 1024);
Yield $line;
}
Fclose ($FP);
}
foreach (Getline ("Example.txt") as $n = = $line) {

}

Using Memory: 216 byte

As you can see from this simple example, using a co-processing file can save up to 10% of memory allocations, especially in the case of large array processing.

Use memory comparison with PHP to process files and regular analysis files