Can You Burn A Glass Screen To Fix It?

I cracked my iPhone 4. My friend encouraged me to burn it because its glass all the cracked glass will stick back to each other. I really don't want to pay for a new screen or phone but this is an eyesore. Does anyone know if this will work or do I need to get it repaired? Also does anyone know a cheap phone repair company so I won't have to pay a lot if I have to buy a new one

You need to get it repaired. LoL

Technically speaking you could "burn" the glass back together but the heat required to melt glass would also melt your phone.