Common PHP In-Built Functions

1. print()
2. print_r()
3. include()
4. include_once()
5. require_once()
6. array()
7. array_slice()
8. array_splice()
9. array_merge()
10. array_push()
11. array_pop()
12. array_reverse()
13. array_count_values()
14. array_pad()
15. count()
16. str_repeat()
17. substr()
18. substr_replace()
19. strrev()
20. strtoupper()
21. strtolower()
22. ucfirst()
23. strstr()
24. stristr()
25. strlen()
26. ucwords()
27. strcpy()
28. str_replace()
29. strcmp()
30. rand()
31. ceil()
32. round()
33. mid5()
34. die()
35. exit()
36. strpos()
37. strcmp()
38. strcasecmp()
39. strchr()
40. trim()
41. chop()
42. ltrim()
43. rtrim()
44. addslashes()
45. stripslashes()
46. mysql_connect()
47. mysql_select_db()
48. mysql_query()
49. mysql_fetch_array()
50. mysql_error()
51. mysql_real_escape_string()
52. mysql_fetch_row()
53. mysql_fetch_object()
54. printf()
55. sprintf()
56. range()
57. implode()
58. explode()
59. list()
60. is_array()
61. size_of()
62. in_array()
63. isset()
64. unset()
65. current()
66. next()
67. prev()
68. reset()
69. end()
70. key()
71. each()
72. array_walk()
73. pos()
74. intval()
75. doubleval()
76. abs()
77. min()
78. max()
79. stand()
80. getrandmax()
81. mysql_create_db()
82. mysql_drop_db()
83. mysql_num_feilds()
84. mysql_tablename()
85. get_class()
86. get_parent_class()
87. array_flip()
88. array_values()
89. array_keys()
90. shuffle()
91. array_shift()
92. array_unshift()
93. compact()
94. extract()
95. asort()
96. arsort()
97. ksort()
98. krsort()
99. sort()
100. rsort()
101. strtok()
102. ereg()
103. ereg_replace()
104. split()
105. spliti()
106. preg_match()
107. preg_match_all()
108. preg_split()
109. preg_replace()
110. preg_quote()