mysql problem: solution to Too many connections

[mysqld]
port = 3306
socket = /tmp/mysql.sock
skip-locking
key_buffer = 160M
max_allowed_packet = 1M
table_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
 read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
max_connections=1000

Of course, you also need to develop good programming habits and achieve reasonable use and recycling of resources, so that your PHP program will be more efficient. This will reduce the occurrence of errors like too many connections.