udalennii fail

[lmz]

mne nujno pri kajdoi zagruzke stranite probivati esli susestvuiet udalennii fail na kakomto servere
naprimer: http://server/file.exe
na php pisu:
@if(fopen("http://server/file.exe","r")){echo('okidochi');}
takoi sposob prokanaet?????