PHP中的数组大小限制

Question

I am wondering is there a size limit for array in php 5? I wrote a php script to change the last element of each line in a file. print out the content of a modified file, when I run the script on a small-sized file (i.e. each line comprises 4 values), it will work. When I run it on a larger file (like 60000 lines, each of which comprises 90 values), it does not change a bit of the original file, but the script did not throw any exception message during runtime. What is this problem?

Answer 1

You could be running out of memory, as your array size is (in theory) only limited by the amount of memory allocated to the script. Put ini_set('memory_limit', '1024M'); in the beginning of your script to set the memory limit to 1 GB. You may need to increase this even higher for best results.