PHP Function Library

A comprehensive reference for 66 PHP functions with descriptions and practical examples

📁 File & Directory Functions
unlink
rmdir
fopen
fclose
file_get_contents
file_put_contents
📋 Array Functions
ksort
array_sum
in_array
is_array
array_push
array_pop
array_merge
📝 String Functions
strpos
str_replace
strlen
strtolower
strtoupper
substr
trim
🔍 Regex Functions
ereg_replace
ereg
preg_match
preg_replace
📅 Date & Time Functions
date
time
mktime
strtotime
🔢 Math Functions
abs
ceil
floor
round
rand
max
min
pow
🗄️ MySQL Database Functions
mysql_connect
mysql_query
mysql_fetch_array
mysql_num_rows
mysql_close
Total functions in library: 66 functions