![]() When you give an $indexkey value of -1 it preserves the associated array key values. The new index null will be converted to an empty stringīecause the function was not available in my version of PHP, I wrote my own version and extended it a little based on my needs. Eight of these oddities are Au (gold), Ag (silver), Cu (copper), FE (iron), SN (tin), Pb (lead), Sb (antimony), and Hg (mercury): All were among the elements recognized by the ancient Greeks and Romans, and the abbreviations for those are based on a Latin or Greek term for the element. On 7.1.21, 7.2.18, 7.4.8 ( not limited to ) will get the following results The new index, null will be converted to int, and can be incremented according to the previous index, that is, if Alice "house" is also null, then Alice 's new index is "0", Jack' s new index is "1" ![]() When it combines with haemoglobin it forms Carboxyhemoglobin. It is a poisonous gas that when inhaled causes asphyxiation and damage to the Central Nervous System. It is also known as Carbonic oxide or Carbon oxide. On 5.6.30, 7.0.0, 7.2.0 ( not limited to ) get the following results It has one carbon atom which is covalently bonded to one oxygen atom. Var_dump ( array_column ( $array, null, 'house' )) Please note that if you use array_column to reset the index, when the index value is null, there will be different results in different PHP versions, examples Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Predefined Attributes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |