Categories: PHP

All About PHP 5 String Functions with Examples

PHP 5 String Functions: PHP continues to be the mainstay of web development with several CMS, frameworks, and platforms built around it. One of the main keys to success lies in the list of PHP built-in functions it offers for developers to expand its functionality. And here in this blog, we will get to know string functions in PHP5 with examples. This is an important list of PHP5 String Functions which is part of the fundamental PHP core. You can use these functions directly into your application without any installation of 3rd Party Services.

PHP 5 String Functions list with examples

No.	Command	Description	Example
1	addcslashes()	This will return the escaped string before the specified characters in list.	addcslashes example
2	addslashes()	This will add/suffix backslash(\) in front of each predefined characters for e.g. single quote(‘) and double quote(“) in string.	addslashes Example
3	bin2hex()	Converts a string of ASCII characters to hexadecimal values.	Click Here
4	chop()	Removes whitespace or other characters from the right end of a string.	Click Here
5	chr()	This function returns a character from a specified ASCII value.	Click Here
6	chunk_split()	Splits a string into smaller chunks.	Click Here
7	convert_cyr_string()	This functions converts one string Cyrillic character set to another.	Click Here
8	convert_uudecode()	Decodes a uuencoded string by convert_uuencode() function	Click Here
9	convert_uuencode()	Encodes a string using the uuencode algorithm.	Click Here
10	count_chars()	Return information about characters used in a string	Click Here
11	crc32()	Cyclic redundancy checksum polynomial of 32-bit lengths of the string	Click Here
12	crypt()	One-way string hashing	Click Here
13	echo()	Outputs one or more strings.	Click Here
14	explode()	Breaks a string into an array.	Click Here
15	fprintf()	It writes a formatted string to a stream.	Click Here
16	get_html_translation_table()	It returns the translation table used by htmlspecialchars() and htmlentities().	Click Here
17	hebrev()	Converts logical Hebrew text to visual text without newline conversion.,	Click Here
18	hebrevc()	Converts logical Hebrew text to visual text with newline conversion.	Click here
19	hex2bin()	Converts a string of hexadecimal values to ASCII characters.	Click Here
20	html_entity_decode()	Converts HTML entities to their applicable characters.	Click Here
21	htmlentities()	It will converts all possible characters to HTML entities.	Click Here
22	htmlspecialchars_decode()	Converts some predefined HTML entities back to characters.	Click Here
23	htmlspecialchars()	Converts all possible characters to HTML entities.	Click Here
24	implode()	This will join array elements in a string.	Click Here
25	join()	Joins two or more strings together	Click Here
26	lcfirst()	It converts first letter of a string to lowercase letter.	Click Here
27	levenshtein()	It calculates Levenshtein distance between two strings.	Click Here
28	localeconv()	It will Get numeric formatting information.	Click Here
29	ltrim()	Truncate spaces or other characters from starting of input string.	Click Here
30	md5_file()	Calculates the MD5 hash of a file.	Click Here
31	md5()	Calculates the MD5 hash of a string.	Click Here
32	metaphone()	Calculate the metaphone key of a string.	Click Here
33	money_format()	Formats a number to a currency string.	Click Here
34	nl_langinfo()	Returns the locale information.	Click Here
35	nl2br()	Inserts HTML line breaks before all newlines in a string.	Click Here
36	number_format()	Format a number.	Click Here
37	ord()	Calculates the ASCII value of first character of a string.	Click Here
38	parse_str()	It parses a query string into variables.	Click Here
39	print()	Outputs one or more strings.	Click Here
40	printf()	Output a formatted string.	Click Here
41	quoted_printable_decode()	Decodes a quoted-printable string to an 8-bit string.	Click Here
42	quoted_printable_encode()	Convert a 8 bit string to a quoted-printable string.	Click Here
43	quotemeta()	Adds backslashes in front of some predefined characters.	Click Here
44	rtrim()	Truncate spaces or other characters from the end of input string.	Click Here
45	setlocale()	Function sets the locale information.	Click Here
46	sha1_file()	Calculates the sha1 hash of the file.	Click Here
47	sha1()	Calculates the sha1 hash of a string.	Click Here
48	similar_text()	Calculates the similarity between two strings	Click Here
49	soundex()	Calculates the soundex key of str.	Click Here
50	sprintf()	Function output a formatted string.	Click Here
51	sscanf()	Function parses input from a string according to a string_format.	Click Here
52	str_getcsv()	Parse a CSV string into an array	Click here
53	str_ireplace()	Replace all occurrences of the search string with the replacement string. It is case – insensitive function. ,	Click here
54	str_pad()	Pad a string to a certain length with another string.	Click here
55	str_repeat()	Repeats a string a specified number of times.	Click here
56	str_replace()	Replace all occurrences of the search string with the replacement string.	Click here
57	str_rot13()	Perform the ROT13 transform/encoding and decoding on a string.	Click here
58	str_shuffle()	Shuffles a string randomly.	Click here
59	str_split()	Breaks a string into an array.	Click here
60	str_word_count()	Counts the number of words in a string.	Click here
61	strcasecmp()	Case-insensitive string comparison function.	Click here
62	strchr()	Find the first occurrence of search in a string.	Click here
63	strcmp()	Binary safe and case-sensitive function.	Click here
64	strcoll()	Compares two strings based on locale.	Click here
65	strcspn()	Returns the number of characters found in a string before any part of the specified characters are found.	Click here
66	strip_tags()	It strip HTML and PHP tags from a string.	Click here
67	stripcslashes()	Removes the backslashes from string	Click here
68	stripos()	Find the position of the first occurrence of a search_string in a string.	Click here
69	stripslashes()	Un-quote string quoted with addslashes().	Click here
70	stristr()	Find the first occurrence of search in a string.	Click here
71	strlen()	It returns the length of a string.	Click here
72	strnatcasecmp()	Compares the two strings using a “natural” algorithm.	Click here
73	strnatcmp()	Compares the two strings using a “natural” algorithm.	Click here
74	strncasecmp()	It will compare two strings.	Click here
75	strncmp()	This function will compare two strings in case-sensitive mode.	Click here
76	strpbrk()	It will searches a string for any of the specified characters.	Click here
77	strpos()	It will find the position of the first occurrence of a search_string in a string.	Click here
78	strrchr()	This function will find the last occurrence of char_string in a string.	Click here
79	strrev()	This function will reverse the string.	Click here
80	strripos()	This function find the position of the last occurrence of a search_string in a string.	Click here
81	strrpos()	This function will find the position of the last occurrence of a search_string in a string.	,Click here
82	strspn		Click here
83	strstr()	This functions find the first occurrence of search in a string.	Click here
84	strtok()	Tokenize string or we can say splits a string into smaller strings (tokens).	Click here
85	strtolower()	Converts all letter of a string to lowercase letter.	Click here
86	strtoupper()	Converts all letter of a string to uppercase letter.	Click here
87	strtr()	It will translate characters or replace strings.	Click here
88	substr_compare()	It will compares two strings from a specified start position.	Click here
89	substr_count()	It will counts the number of times a substring comes in a string.	Click here
90	substr_replace()	It will replace text within a part of a string.	Click here
91	substr()	It will return part of a string.	Click here
92	trim()	This function truncate spaces or other characters from the beginning and end of input string.	Click here
93	ucfirst()	Converts first letter of a string to uppercase letter.	Click here
94	ucwords()	Converts first letter of every word in a string to uppercase letter.	Click here
95	vfprintf		Click here
96	vprintf		Click here
97	vsprintf		Click here
98	wordwrap	Wraps a string to a given number of width using a string break character.	Click here
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