Php Read file line by line
Php Read file line by line : For large files we can’t load the full file in memory at a time which will cause memory exhaust errors. To read large file programmatically we should always follow the line by line approach. If you working with an application which has large file in GB or TB or more than that always try to read the files line by line. Here in this tutorial we are going to explain how you can read a big file line by line without causing the memory exhaust error problem.
Php Read file line by line : Read Large File
You can read a large file line by line as below –
Php Read Large file line by line : Example
$file = fopen("bigfile.txt", "r");
if($file){
// if the file is opened successfully
while(!feof($file)){
$line = fgets($file);
//perform action with $line
}
fclose($file);
}else{
echo "Error while opening the file.";
}
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The function feof() is used to get the line no from the file. The above example will open the file and read the file bigfile.txt line by line.
Note : feof() gets the line no from the file pointer. For more detail about the function feof() you can refer – fgets() function.
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