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# PHP flock() Function | Rookie Tutorial # [Rookie Tutorial -- Learning not only technology, but also dreams!]( * ( * ( * ( * ( * (javascript:void(0);) * ( * ( * ( * ( * [C++]( * [C#]( * (javascript:void(0);) * ( * ( * ( * ( * (javascript:void(0);) * ( * ( * ( * ( * ( * ( * ( * (javascript:void(0)) * ( * ( * ( * ( * ( * ( * ( * ( * ( * ( * ( * ( * ( PHP Tutorial ( "PHP Tutorial")( "PHP Introduction")( "PHP Installation")( "PHP Syntax")( "PHP Variables")[PHP echo/print]( "PHP echo/print Statement")[PHP EOF (heredoc)]( "PHP EOF (heredoc) Usage Instructions")( "PHP Data Types")( "PHP Type Comparisons")( "PHP Constants")( "PHP String Variable")( "PHP Operators")[PHP If...Else]( "PHP If…Else Statement")( "PHP Switch Statement")( "PHP Arrays")( "PHP Array Sorting")( While Loop]( "PHP While Loop")( "PHP For Loop")( "PHP Functions")( Namespaces]( Object-Oriented Programming]( Quiz]( ## PHP Forms ( "PHP Forms")( Form - Required Fields]( Form - Validate Email and URL]( Complete Form Example]( $_GET Variable]( "PHP $_GET Variable")[PHP $_POST Variable]( "PHP $_POST Variable") ## Advanced PHP Tutorials ( "PHP Multidimensional Arrays")( "PHP date() Function")( "PHP include and require")( "PHP Files")( "PHP File Upload")( "PHP Cookies")( "PHP Sessions")( "PHP Mail")( "PHP Secure E-mail")( "PHP Error Handling")( "PHP Exception Handling")( "PHP Filters")( JSON]( ## New Features of PHP 7 ( ## PHP Databases ( "PHP MySQL Introduction")( "PHP MySQL Connection")( "PHP MySQL Database Creation")( "PHP MySQL Table Creation")( "PHP MySQL Data Insertion")( "PHP MySQL Multiple Data Insertion")(