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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.
PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.
(PHP 4 >= 4.2.0, PHP 5)
array_change_key_case -- Returns an array with all string keys lowercased or uppercased
array_change_key_case() changes the
keys in the input array to
be all lowercase or uppercase. The change depends
on the last optional case
parameter. You can pass two constants there,
CASE_UPPER and
CASE_LOWER. The default is
CASE_LOWER. The function will leave
number indices as is.
If an array has indices that will be the same once run through this function (e.g. "keY" and "kEY"), the value that is later in the array will override other indices.
Another Useful functions:
zend-macro.zend-arg-array-info | zend-api.zend-get-parameters-array | zend-api.zend-get-parameters-array-ex | zend-api.zend-copy-parameters-array | zend-api.init-op-array | zend-api.destroy-op-array | zend-api.array-init | ref.array | language.types.array | language.operators.array | function.udm-alloc-agent-array | function.sybase-fetch-array | function.sqlite-fetch-array | function.sqlite-array-query | function.sesam-field-array | function.sesam-fetch-array | function.pg-fetch-array | function.odbc-fetch-array | function.oci-fetch-array | function.oci-bind-array-by-name | function.mysqli-fetch-array | function.mysql-fetch-array | function.mssql-fetch-array | function.msql-fetch-array | function.msession-set-array | function.msession-get-array | function.maxdb-fetch-array | function.iterator-to-array | function.is-array | function.ingres-fetch-array | function.in-array | function.hw-objrec2array | function.hw-array2objrec | function.httpquerystring-toarray | function.filter-var-array | function.filter-input-array | function.fbsql-fetch-array | function.db2-fetch-array | function.curl-setopt-array | function.call-user-method-array | function.call-user-func-array | function.arrayobject-offsetunset | function.arrayobject-offsetset | function.arrayobject-offsetget | function.arrayobject-offsetexists | function.arrayobject-getiterator | function.arrayobject-count | function.arrayobject-construct | function.arrayobject-append | function.arrayiterator-valid | function.arrayiterator-seek | function.arrayiterator-rewind | function.arrayiterator-next | function.arrayiterator-key | function.arrayiterator-current | function.array | function.array-walk | function.array-walk-recursive | function.array-values | function.array-unshift | function.array-unique | function.array-uintersect | function.array-uintersect-uassoc | function.array-uintersect-assoc | function.array-udiff | function.array-udiff-uassoc | function.array-udiff-assoc | function.array-sum | function.array-splice | function.array-slice | function.array-shift | function.array-search | function.array-reverse | function.array-reduce | function.array-rand | function.array-push | function.array-product | function.array-pop | function.array-pad | function.array-multisort | function.array-merge | function.array-merge-recursive | function.array-map | function.array-keys | function.array-key-exists | function.array-intersect | function.array-intersect-ukey | function.array-intersect-uassoc | function.array-intersect-key | function.array-intersect-assoc | function.array-flip | function.array-filter | function.array-fill | function.array-fill-keys | function.array-diff | function.array-diff-ukey | function.array-diff-uassoc | function.array-diff-key | function.array-diff-assoc | function.array-count-values | function.array-combine | function.array-chunk | function.array-change-key-case |
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.