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SPHPlayground API

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Introduction ISO 8601 time Calendar unit enumerations ISO Weeks and months

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SPHPlayground

Calendar

May 2026

wk

MoMonday

TuTuesday

WeWednesday

ThThursday

FrFriday

SaSaturday

SuSunday

18

27

28

29

30

1

2

3

19

4

5

6

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20

11

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14

15

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27

28

29

30

31

External links

JavaScript

Node.js
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PHP

PHP Manual
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HTML

HTML5 - W3C
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Contact information

Photo of Sami Holck

Sami Petteri Holck

Rakuunatie 59 A3, Turku, Finland

+358 44 298 6738

sami.holck@gmail.com

sami@samiholck.fi

GitHub Stack Overflow Facebook X page Instagram Whatsapp

Copyright © 2026 Sami Holck | SPHPlayground Design | |

License

MIT License

Copyright (c) 2026 Sami Holck

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

repository License file

Code of Conduct

The Pledge

In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in this project a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.

Standards

Examples of behavior that contributes to creating a positive environment include:

Using welcoming and inclusive language
Being respectful of differing viewpoints and experiences
Gracefully accepting constructive criticism
Showing empathy towards others

Examples of unacceptable behavior include:

The use of sexualized language or imagery and unwelcome sexual attention or advances
Trolling, insulting/derogatory comments, and personal or political attacks
Public or private harassment
Publishing others' private information without explicit permission
Other conduct which could reasonably be considered inappropriate in a professional setting

Responsibilities

Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.

Project maintainers have the right and responsibility to remove, edit, or reject any contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.

Enforcement

Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project maintainer at sami.holck@gmail.com.

Scope

This Code of Conduct applies within all community spaces, and also applies when an individual is officially representing this project in public or other spaces.

Attribution

This Code of Conduct is adapted from the Contributor Covenant, version 3.0, permanently available at Contributor Covenant.

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Application configuration

App Configuration

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Application configuration

Docs - config-errorhandling

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/sphp-config-errorhandling

Security considerations

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/sphp-datetime-home

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/sphp-datetime-calendarunit

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Docs - documentation

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/sphp-documentation

Commonmark extension

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Docs - reflection

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/sphp-reflection

Docs - reflection-information

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/sphp-reflection-information

Docs - reflection-utils-phpwords

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/sphp-reflection-utils-phpwords

Data Validation

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/sphp-validators-home

Data Validation

Validating empty data

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/sphp-validators-validating_empty_data

Data Validation

Validating numeric data

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/sphp-validators-validating_numeric_data

Data Validation

String validation

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/sphp-validators-string_validation

Data Validation

Miscellaneous validators

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/sphp-validators-miscellaneous_validators

Data Validation

Validator containers

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/sphp-validators-validator_containers

Data Validation

Datetime validation

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/sphp-validators-datetime_validation

Network components

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Network components

Docs - network-headers

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/sphp-network-headers

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/sphp-database-home

Database clauses-rowsets

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/sphp-database-clauses-rowsets

Database select

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/sphp-database-select

Database insert

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Database delete

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/sphp-database-delete

Database update

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/sphp-database-update

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Application localization

Docs - localization

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/sphp-localization

Data Structures

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/sphp-stdlib-ds-queue

Data Structures

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/sphp-stdlib-ds-stack

Data Structures

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Standard Library

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/sphp-stdlib-arrays

Standard Library

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Standard Library

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Standard Library

Multibyte String object

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/sphp-stdlib-mbstring

HTML components

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/sphp-html-home

HTML components

Attribute management

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/sphp-html-attribute_management

HTML components

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/sphp-html-colors-home

HTML components

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/sphp-html-media

HTML components

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/sphp-html-multimedia

HTML components

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/sphp-html-meta

HTML components

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/sphp-html-scripts

HTML components

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/sphp-html-lists

HTML components

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/sphp-html-tables

HTML components

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/sphp-html-forms

HTML components

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/sphp-html-factories

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/sphp-bootstrap-home

Layout components

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/sphp-bootstrap-layout_components

Navigation components

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/sphp-bootstrap-navigation_components

Form components

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/sphp-bootstrap-form_components

Button components

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Other components

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/sphp-bootstrap-other_components

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/sphp-media-icons

Playground AppDocs

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Playground AppDocs

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/sphp-apps-calendars

Playground AppDocs

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/sphp-apps-sports

Data Validation

Docs - validators

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/sphp-validators

Website traffic monitor

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Website traffic monitor

User Agent search engine

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/tst-ua_search_engine

Website traffic monitor

User Agent traffic charts

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/tst-ua_traffic_charts

Website traffic monitor

User Agent traffic ranking

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/tst-ua_traffic_ranking

Website traffic monitor

User Agent traffic graphs

playground.samiholck.fi

/tst-ua_traffic_graphs

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/sports-exercise-chart

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/sports-category-chart

Iconsets-search

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/iconsets-search

Country-data-search

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/country-data-search

Filetype-icon-search

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/filetype-icon-search

Gettext search engine

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/gettext-search

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