PHP String handling functions

PHP String handling functions can help you to easily manipulate strings. In this article, we’ll cover some of the most commonly used string handling functions in PHP.

FUNCTION	USE
addcslashes	Adds backslashes in front of the specified characters.
addslashes	Adds backslashes in front of some predefined characters.
bin2hex	Converts binary data to the hexadecimal form.
chop	Removes whitespace or other characters from the right end of a string.
chr	Creates a character from a specified ASCII value.
chunk_split	Split a string into smaller parts.
count_chars	Returns information about characters used in a string.
crypt	Used for one-way string hashing.
echo	Outputs one or more strings.
explode	Splits a string as an array.
fprintf	Writes a formatted string to a specified output stream.
hex2bin	Converts a hexadecimally encorded values to ASCII characters.
html_entity_decode	Converts HTML entities to their corresponding character.
htmlentities	Converts all characters to HTML entities.
htmlspecialchars_decode	Convert special HTML entities back to characters.
htmlspecialchars	Converts some predefined characters to HTML entities.
implode	Creates a string from array elements.
join	Alias of implode function.
lcfirst	Makes the first character of a string lowercase.
ltrim	Removes whitespace or other characters from the beginning of a string.
md5	Calculates the md5 hash of a string
nl2br	Appends HTML line breaks before all newlines in a string.
number_format	Formats a number with grouped thousands.
print	Outputs a string.
printf	Outputs a formatted string.
rtrim	Removes whitespace or other characters from the end of a string.
sha1	Calculate the sha1 hash of a string.
similar_text	Calculates the similarity between two strings.
sprintf	Returns a formatted string.
sscanf	Creates input from a string according to a format.
str_getcsv	Converts a CSV string as an array.
str_ireplace	Replaces some characters in a string. It is the case-insensitive version of str_replace.
str_pad	Pads a string to a new length.
str_repeat	Repeats a string for a specified number of times.
str_replace	Replaces all the occurrences of a string. It is case-sensitive.
str_shuffle	Shuffles all characters of a string.
str_split	Splits a string into an array.
str_word_count	Counts the number of words in a string.
strcasecmp	Performs a case-insensitive string comparison.
strcmp	Performs a case-sensitive string comparison.
strip_tags	Removes HTML and PHP tags from a string
stripcslashes	Un-quote string quoted with addcslashes function.
stripos	Finds the position of the first occurrence of a case-insensitive substring in a string.
stripslashes	Un-quotes a quoted string.
strlen	Calculates the length of a string.
strnatcasecmp	Performs a case-insensitive string comparison.
strpos	Finds the position of the first occurrence of a case-sensitive substring in a string.
strrchr	Find the last occurrence of a character in a string.
strrev	Finds the reverse of a string.
strripos	Finds the position of the last occurrence of a case-insensitive substring in a string.
strrpos	Finds the position of the last occurrence of a case-sensitive substring in a string.
strstr	Find the first occurrence of a string (Case-sensitive).
strtolower	Converts a string to lowercase.
strtoupper	Converts a string to uppercase .
strtr	Translates certain characters or replace a substring from a string.
substr_count	Finds the total numbers of occurrences of a substring.
substr_replace	Replaces a part of a string (substring) with another.
substr	Returns a substring.
trim	Removes whitespace or other characters from the beginning and end of a string.
ucfirst	Make the first character of a string uppercase.
ucwords	Make the first character of each word in a string uppercase.
wordwrap	Wraps a string to a given number of characters.

This article does not explain about all PHP string handling functions.

PHP String handling functions

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