Function
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Description
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Returns a string
with backslashes in front of the specified characters
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Returns a string
with backslashes in front of predefined characters
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Converts a string of
ASCII characters to hexadecimal values
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Removes whitespace
or other characters from the right end of a string
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Returns a character
from a specified ASCII value
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Splits a string into
a series of smaller parts
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Converts a string
from one Cyrillic character-set to another
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Decodes a uuencoded
string
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Encodes a string
using the uuencode algorithm
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Returns information
about characters used in a string
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Calculates a 32-bit
CRC for a string
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One-way string
hashing
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Outputs one or more
strings
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Breaks a string into
an array
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Writes a formatted
string to a specified output stream
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Returns the
translation table used by htmlspecialchars() and htmlentities()
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Converts Hebrew text
to visual text
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Converts Hebrew text
to visual text and new lines (\n) into <br>
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Converts a string of
hexadecimal values to ASCII characters
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Converts HTML
entities to characters
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Converts characters
to HTML entities
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Converts some
predefined HTML entities to characters
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Converts some
predefined characters to HTML entities
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Returns a string
from the elements of an array
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Alias of implode()
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Converts the first
character of a string to lowercase
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Returns the
Levenshtein distance between two strings
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Returns locale
numeric and monetary formatting information
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Removes whitespace
or other characters from the left side of a string
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Calculates the MD5
hash of a string
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Calculates the MD5
hash of a file
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Calculates the
metaphone key of a string
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Returns a string
formatted as a currency string
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Returns specific
local information
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Inserts HTML line
breaks in front of each newline in a string
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Formats a number
with grouped thousands
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Returns the ASCII
value of the first character of a string
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Parses a query
string into variables
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Outputs one or more
strings
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Outputs a formatted
string
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Converts a
quoted-printable string to an 8-bit string
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Converts an 8-bit
string to a quoted printable string
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Quotes meta
characters
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Removes whitespace
or other characters from the right side of a string
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Sets locale
information
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Calculates the SHA-1
hash of a string
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Calculates the SHA-1
hash of a file
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Calculates the
similarity between two strings
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Calculates the
soundex key of a string
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Writes a formatted
string to a variable
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Parses input from a
string according to a format
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Parses a CSV string
into an array
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Replaces some
characters in a string (case-insensitive)
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Pads a string to a
new length
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Repeats a string a
specified number of times
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Replaces some
characters in a string (case-sensitive)
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Performs the ROT13
encoding on a string
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Randomly shuffles
all characters in a string
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Splits a string into
an array
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Count the number of
words in a string
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Compares two strings
(case-insensitive)
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Finds the first
occurrence of a string inside another string (alias of strstr())
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Compares two strings
(case-sensitive)
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Compares two strings
(locale based string comparison)
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Returns the number
of characters found in a string before any part of some specified characters
are found
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Strips HTML and PHP
tags from a string
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Unquotes a string
quoted with addcslashes()
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Unquotes a string
quoted with addslashes()
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Returns the position
of the first occurrence of a string inside another string (case-insensitive)
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Finds the first
occurrence of a string inside another string (case-insensitive)
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Returns the length
of a string
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Compares two strings
using a "natural order" algorithm (case-insensitive)
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Compares two strings
using a "natural order" algorithm (case-sensitive)
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String comparison of
the first n characters (case-insensitive)
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String comparison of
the first n characters (case-sensitive)
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Searches a string
for any of a set of characters
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Returns the position
of the first occurrence of a string inside another string (case-sensitive)
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Finds the last
occurrence of a string inside another string
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Reverses a string
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Finds the position
of the last occurrence of a string inside another string (case-insensitive)
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Finds the position
of the last occurrence of a string inside another string (case-sensitive)
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Returns the number
of characters found in a string that contains only characters from a
specified charlist
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Finds the first
occurrence of a string inside another string (case-sensitive)
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Splits a string into
smaller strings
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Converts a string to
lowercase letters
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Converts a string to
uppercase letters
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Translates certain
characters in a string
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Returns a part of a
string
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Compares two strings
from a specified start position (binary safe and optionally case-sensitive)
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Counts the number of
times a substring occurs in a string
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Replaces a part of a
string with another string
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Removes whitespace
or other characters from both sides of a string
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Converts the first
character of a string to uppercase
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Converts the first
character of each word in a string to uppercase
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Writes a formatted
string to a specified output stream
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Outputs a formatted
string
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Writes a formatted
string to a variable
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Wraps a string to a
given number of characters
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PHP String Functions Example
PHP Parser To Find Menus
