In this example we will\u00a0show you how to manipulate strings from uppercase to lowercase and from lowercase to uppercase with PHP. This is neccesary\u00a0when you need to format text.
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Changing text from uppercase to lowercase or from lowercase to uppercase can become necessary when we are formating or reformatting text. We might need to do this, if for example we want the first letter of the first word in a paragraph to be in uppercase or we want all the words in a paragraph to be in lowercase.<\/p>\n
According to library website PHP QR Code is open source (LGPL) library for generating QR Code, 2-dimensional barcode. Based on libqrencode C library, provides API for creating QR Code barcode images (PNG, JPEG thanks to GD2). Implemented purely in PHP.\r\nsome of the features of this library are\r\n<\/pre>\nWe want to convert the above text to:<\/p>\n
According To Library Website PHP QR Code Is Open Source (LGPL) Library For Generating QR Code, 2-dimensional Barcode. Based On Libqrencode C Library, Provides API For Creating QR Code Barcode Images (PNG, JPEG thanks to GD2). Implemented Purely In PHP.\r\nSome Of The Features Of This Library Are\r\n<\/pre>\nIn the text above we have successfully converted the first\u00a0letter of each word to uppercase. PHP provides us with so many functions to carry out tasks like this. Lets take a look at some of this functions with some examples.<\/p>\n
1.1 strtolower<\/h3>\n
strtolower<\/code> converts a string to lowercase. The parameter or arguement supplied to this function is the string we intend to manipulate or convert.<\/p>\nString strtolower(String text);\r\n\r\n<\/pre>\nThe function above returns the lowercased string.<\/p>\n
index.php<\/em><\/span><\/p>\n
<!DOCTYPE html> \r\n<html lang=en>\r\n\t<head>\r\n\t<style>\r\n\t<\/style>\r\n\r\n\t\t<meta charset=\"utf-8\" \/>\r\n\t\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi\"\/>\r\n\r\n\t\t<title>\r\nPreviewing The QR Code Image\r\n\r\n<\/title>\r\n\t\t\r\n\t\t<\/head>\r\n\t<body>\r\n\t<?php\r\n$text=\"According To Library Website PHP QR Code Is Open Source (LGPL) Library For Generating QR Code, 2-dimensional Barcode. Based On Libqrencode C Library, Provides API For Creating QR Code Barcode Images (PNG, JPEG thanks to GD2). Implemented Purely In PHP.\r\nSome Of The Features Of This Library Are\";\r\n\/\/ returns according to library website php qr code is open source (lgpl) library for generating qr code, 2-dimensional barcode. based on libqrencode c library, provides api for creating qr code barcode images (png, jpeg thanks to gd2). implemented purely in php. some of the features of this library are\r\necho strtolower($text);\r\n\r\n?>\r\n\t<\/body>\r\n\t<\/html>\r\n<\/pre>\nIn the example above we converted the whole text to lowercase with the
strtolower<\/code> function.<\/p>\n1.2 strtoupper<\/h3>\n
strtoupper<\/code> converts a string to uppercase. The parameter or arguement supplied to this function is the string we intend to manipulate or convert.<\/p>\nString strtoupper(String text);\r\n\r\n<\/pre>\nThe function above returns the uppercased string.<\/p>\n
index2.php<\/em><\/span><\/p>\n
<!DOCTYPE html> \r\n<html lang=en>\r\n\t<head>\r\n\t<style>\r\n\t<\/style>\r\n\r\n\t\t<meta charset=\"utf-8\" \/>\r\n\t\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi\"\/>\r\n\r\n\t\t<title>\r\nPreviewing The QR Code Image\r\n\r\n<\/title>\r\n\t\t\r\n\t\t<\/head>\r\n\t<body>\r\n\t<?php\r\n$text=\"According To Library Website PHP QR Code Is Open Source (LGPL) Library For Generating QR Code, 2-dimensional Barcode. Based On Libqrencode C Library, Provides API For Creating QR Code Barcode Images (PNG, JPEG thanks to GD2). Implemented Purely In PHP.\r\nSome Of The Features Of This Library Are\";\r\n\/\/ returns ACCORDING TO LIBRARY WEBSITE PHP QR CODE IS OPEN SOURCE (LGPL) LIBRARY FOR GENERATING QR CODE, 2-DIMENSIONAL BARCODE. BASED ON LIBQRENCODE C LIBRARY, PROVIDES API FOR CREATING QR CODE BARCODE IMAGES (PNG, JPEG THANKS TO GD2). IMPLEMENTED PURELY IN PHP. SOME OF THE FEATURES OF THIS LIBRARY ARE\r\necho strtoupper($text);\r\n\r\n?>\r\n\t<\/body>\r\n\t<\/html>\r\n<\/pre>\nIn the example above we converted the whole text to uppercase with
strtoupper<\/code> function<\/p>\n1.3 lcfirst<\/h3>\n
lcfirst<\/code> converts the first character or letter of a string to lowercase. The parameter or arguement supplied to this function is the string we intend to manipulate or convert.<\/p>\nString lcfirst(String text);\r\n\r\n<\/pre>\nThe function above returns the first character of the string as lowercased.<\/p>\n
index3.php<\/em><\/span><\/p>\n
<!DOCTYPE html> \r\n<html lang=en>\r\n\t<head>\r\n\t<style>\r\n\t<\/style>\r\n\r\n\t\t<meta charset=\"utf-8\" \/>\r\n\t\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi\"\/>\r\n\r\n\t\t<title>\r\nPreviewing The QR Code Image\r\n\r\n<\/title>\r\n\t\t\r\n\t\t<\/head>\r\n\t<body>\r\n\t<?php\r\n$text=\"According To Library Website PHP QR Code Is Open Source (LGPL) Library For Generating QR Code, 2-dimensional Barcode. Based On Libqrencode C Library, Provides API For Creating QR Code Barcode Images (PNG, JPEG thanks to GD2). Implemented Purely In PHP.\r\nSome Of The Features Of This Library Are\";\r\n\/\/ returns according To Library Website PHP QR Code Is Open Source (LGPL) Library For Generating QR Code, 2-dimensional Barcode. Based On Libqrencode C Library, Provides API For Creating QR Code Barcode Images (PNG, JPEG thanks to GD2). Implemented Purely In PHP. Some Of The Features Of This Library Are\r\necho lcfirst($text);\r\n\r\n?>\r\n\t<\/body>\r\n\t<\/html>\r\n<\/pre>\n1.4 ucfirst<\/h3>\n
ucfirst<\/code> converts the first character or letter of a string to uppercase. The parameter or arguement supplied to this function is the string we intend to manipulate or convert.<\/p>\nString ucfirst(String text);\r\n\r\n<\/pre>\nThe function above returns the first character of the string as uppercased.<\/p>\n
index4.php<\/em><\/span><\/p>\n
<!DOCTYPE html> \r\n<html lang=en>\r\n\t<head>\r\n\t<style>\r\n\t<\/style>\r\n\r\n\t\t<meta charset=\"utf-8\" \/>\r\n\t\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi\"\/>\r\n\r\n\t\t<title>\r\nPreviewing The QR Code Image\r\n\r\n<\/title>\r\n\t\t\r\n\t\t<\/head>\r\n\t<body>\r\n\t<?php\r\n$text=\"according to library website php qr code is open source (lgpl) library for generating qr code, 2-dimensional barcode. based on libqrencode c library, provides api for creating qr code barcode images (png, jpeg thanks to gd2). implemented purely in php. some of the features of this library are \";\r\n\/\/According to library website php qr code is open source (lgpl) library for generating qr code, 2-dimensional barcode. based on libqrencode c library, provides api for creating qr code barcode images (png, jpeg thanks to gd2). implemented purely in php. some of the features of this library are\r\necho ucfirst($text);\r\n\r\n?>\r\n\t<\/body>\r\n\t<\/html>\r\n<\/pre>\n1.5 ucwords<\/h3>\n
ucwords<\/code> converts the first character of each word in a string to uppercase. The parameter or arguement supplied to this function is the string we intend to manipulate or convert.<\/p>\nString ucwords(String text);\r\n\r\n<\/pre>\nThe function above returns the first word of the string as uppercased.<\/p>\n
index5.php<\/em><\/span><\/p>\n
<!DOCTYPE html> \r\n<html lang=en>\r\n\t<head>\r\n\t<style>\r\n\t<\/style>\r\n\r\n\t\t<meta charset=\"utf-8\" \/>\r\n\t\t<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, target-densitydpi=device-dpi\"\/>\r\n\r\n\t\t<title>\r\nPreviewing The QR Code Image\r\n\r\n<\/title>\r\n\t\t\r\n\t\t<\/head>\r\n\t<body>\r\n\t<?php\r\n$text=\"according to library website php qr code is open source (lgpl) library for generating qr code, 2-dimensional barcode. based on libqrencode c library, provides api for creating qr code barcode images (png, jpeg thanks to gd2). implemented purely in php. some of the features of this library are \";\r\n\/\/According To Library Website Php Qr Code Is Open Source (lgpl) Library For Generating Qr Code, 2-dimensional Barcode. Based On Libqrencode C Library, Provides Api For Creating Qr Code Barcode Images (png, Jpeg Thanks To Gd2). Implemented Purely In Php. Some Of The Features Of This Library Are\r\necho ucwords($text);\r\n\r\n?>\r\n\t<\/body>\r\n\t<\/html>\r\n<\/pre>\n2. Summary<\/h2>\n
In this example we learnt how to convert strings from uppercase to lowercase and from lowercase to uppercase. We learnt about PHP
ucwords<\/code>,ucfirst<\/code>,lcfirst<\/code>,strtoupper<\/code>,strtolower<\/code> function.<\/p>\n3. Download the source code<\/h2>\n