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Example code of dbeurive/util

Informations about the package util

Description

This package implements some basic, but frequently used, utilities.

Installation

From the command line:

composer require dbeurive/util

From your composer.json file:

{
    "require": {
        "dbeurive/util": "*"
    }
}

API documentation

The detailed documentation of the API can be extracted from the code by using PhpDocumentor. The file phpdoc.xml contains the required configuration for PhpDocumentor. To generate the API documentation, just move into the root directory of this package and run PhpDocumentor from this location.

Note:

Since all the PHP code is documented using PhpDoc annotations, you should be able to exploit the auto completion feature from your favourite IDE. If you are using Eclipse, NetBeans or PhPStorm, you probably won’t need to consult the generated API documentation.

Quick overview

Please, refer to the API (that you can generate), or to the code itself for details.

Arrays

Function Description
array_keys_exists(array $inKeys, array $inArray) Test if a given array contains a given list of keys.
array_keep_keys(array $inKeysToKeep, array $inArray, $inOptValuesOnly=false) Extract a specified set of keys/values - or values only - from a given associative array.

Classes

Function Description
implements_interface($inClassName, $inInterfaceName) Test if a given class implements a given interface.
implements_interfaces($inClassName, array $inInterfaceNames) Tests if a given class implements a given list of interfaces.
get_namespace($inPath) Get the namespace for a given PHP file.

Data

Function Description
to_callable_php_file($inData, $inOptFilePath=false) Return a string that represents the PHP code that, if executed, returns a given PHP data.

Examples

String

Function Description
trim($inString, $inWhere=UtilString::TRIM_END) Remove spaces or carriage returns from a given string.
text_linearize($inString, $inOptShrinkSpaces=false, $inOptTrimEnd=false) This method takes a string that possibly spans over several lines and transforms it so it spans over one line only.

Code

Function Description
require_with_args($inPath, array $inArgs) Loads and executes a given PHP file, just like the function require(), except that it allows the caller to pass parameters to the code being executed.

Examples

SQL

MySql

Function Description
quoteFieldName($inFieldName) Quote a field's name.
quoteFieldsNames(array $inFieldsNames, $inOptTableName=null, $inOptDatabaseName=null) Quote, and optionally, fully qualify, an array of fields' names.
qualifyFieldName($inFieldName, $inTableName, $inBaseName=null) Qualify a given field's name relatively to a given table's name, and, optionally, a given database name.
qualifyFieldsNames(array $inFieldsNames, $inTableName, $inOptDatabaseName=null) Qualify a given list of fields' names relatively to a given table's name, and, optionally, a given database name.
developSql($inSqlTemplate, array $inSchema, $inOptAs=false, $inOptQuote=false, array $inTags=[]) "Develop" a SQL request. The term "develop" means "replace an expression like 'user.*' into a list of fields in SELECT statements". Please see the explanation below.

Examples

Explanation for method developSql()

First, let's consider these 3 examples:

Example 1:: The SQL "template" below:

SELECT user.* FROM `user`

Can be developed into one of these expressions: 

SELECT user.id, user.login FROM `user`
SELECT user.id AS 'user.id', user.login AS 'user.login' FROM `user`
SELECT `user`.`id` AS 'user.id', `user`.`login` AS 'user.login' FROM `user`

Example 2:: The SQL "template" below:

SELECT user.*, profile.* FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id

Can be developed into one of these expressions:

SELECT user.id, user.login, profile.id, profile.age, profile.fk_user_id FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id
SELECT user.id AS 'user.id', user.login AS 'user.login', profile.id AS 'profile.id', profile.age AS 'profile.age', profile.fk_user_id AS 'profile.fk_user_id' FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id
SELECT `user`.`id` AS 'user.id', `user`.`login` AS 'user.login', `profile`.`id` AS 'profile.id', `profile`.`age` AS 'profile.age', `profile`.`fk_user_id` AS 'profile.fk_user_id' FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id

Example 3:: And the (silly) SQL "template" below:

SELECT __USER__ FROM `user` WHERE user.login='user.*'

Can be developed into one of these expressions: 

SELECT user.id, user.login FROM `user` WHERE user.login='user.*'
SELECT user.id AS 'user.id', user.login AS 'user.login' FROM `user` WHERE user.login='user.*'
SELECT `user`.`id` AS 'user.id', `user`.`login` AS 'user.login' FROM `user` WHERE user.login='user.*'

For example 1

$template = "SELECT user.* FROM `user`";
$schema   = [ 'user' => ['id', 'login'], 'profile' => ['id', 'age', 'fk_user_id'] ];

$result = UtilMySql::developSql($template, $schema, false, false); // => SELECT user.id, user.login FROM `user`
$result = UtilMySql::developSql($template, $schema, true, false);  // => SELECT user.id AS 'user.id', user.login AS 'user.login' FROM `user`
$result = UtilMySql::developSql($template, $schema, true, true);   // => SELECT `user`.`id` AS 'user.id', `user`.`login` AS 'user.login' FROM `user`

For example 2

$template = "SELECT user.*, profile.* FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id";
$schema = [ 'user' => ['id', 'login'], 'profile' => ['id', 'age', 'fk_user_id'] ];

$result = UtilMySql::developSql($template, $schema, false, false); // => SELECT user.id, user.login, profile.id, profile.age, profile.fk_user_id FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id
$result = UtilMySql::developSql($template, $schema, true, false);  // => SELECT user.id AS 'user.id', user.login AS 'user.login', profile.id AS 'profile.id', profile.age AS 'profile.age', profile.fk_user_id AS 'profile.fk_user_id' FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id
$result = UtilMySql::developSql($template, $schema, true, true);   // => SELECT `user`.`id` AS 'user.id', `user`.`login` AS 'user.login', `profile`.`id` AS 'profile.id', `profile`.`age` AS 'profile.age', `profile`.`fk_user_id` AS 'profile.fk_user_id' FROM `user` INNER JOIN `profile` ON user.id=profile.fk_user_id

For example 3

$template = "SELECT __USER__ FROM `user` WHERE user.login='user.*'";
$schema   = [ 'user' => ['id', 'login'], 'profile' => ['id', 'age', 'fk_user_id'] ];
$tags     = ['__USER__' => 'user.*'];

$result = UtilMySql::developSql($template, $schema, false, false, $tags); // => SELECT user.id, user.login FROM `user`
$result = UtilMySql::developSql($template, $schema, true, false, $tags);  // => SELECT user.id AS 'user.id', user.login AS 'user.login' FROM `user`
$result = UtilMySql::developSql($template, $schema, true, true, $tags);   // => SELECT `user`.`id` AS 'user.id', `user`.`login` AS 'user.login' FROM `user`

Unit tests

Function Description
call_private_or_protected_static_method($inClassName, $inMethodName) Execute a private or a protected static method from a given class.
call_private_or_protected_method($inClassName, $inMethodName, $inObject) Execute a private or a protected non-static method from a given class, within the context of a given object.

Examples

Binary tools

TODO

Debug

TODO

Examples

The unit tests are good examples.

All versions of util with dependencies

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