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Code Snippets

A steadily growing collection of handy PHP code snippets that you should find useful!

• Add numbers to MySQL database results.
• Get the id of an auto_incrementing id from a mysql insert
• Remove all characters except letters and numbers from a string
• Calculate VAT on a price and round to two decimal places
• Check that characters in a variable are alpha numeric using ereg
• Verify using ereg that characters in a variable only contain numbers
• Use ereg to check that characters in a variable only contain letters
• Count and display the number of rows in a mysql database table
• How to include a file in PHP
• Remove white space from a text string using the PHP trim function
• Count the number of lines in a text file
• Limit the length of a text string being entered into a database
• Find and replace words in a text string using str_replace
• Count number of words in a text string
• Date and time a file was last accessed
• Number of days between now and a day in the future
• Convert links into clickable hyperlinks
• Create a random password
• Write data to a text file
• Send email using the PHP mail() function
• Delete data from a MySQL database
• Add data to a MySQL database
• Validate an email address using regular expressions
• Display date and time with PHP
• Connect to a MySQL database
• Shorten a text string
• Server information
• Word wrap
• Page redirect
• Date file last modified
• Visitor information
• Page load time