PHP filter
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PHP filters are used to validate and sanitize data from insecure sources like user input, web services, cookies, and database queries. They validate data types and formats and remove illegal characters. Common filters validate integers, IP addresses, emails, and URLs. Functions like filter_var() and filter_input() allow filtering single or multiple variables with specified filter flags.
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Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
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PHP filter
- 1. PHP Filters PHP filters are used to validate and filter data coming from insecure source like user input, web services data, cookies and database query results. It validate and sanitizing data. Validation data means data is in proper form or not and sanitizing means remove any illegal character form data
- 2. Why Use Filters Almost all web applications depends on external inputs and by using filter you can be sure your application gets correct input type Invalid submitted data can lead to security problems and break your webpage!
- 3. Functions and Filters Filter_var() :- filter a single variable with specified filter flag Filter_var_array() :- filter the several variable with the same or different filter. Filter_input :- get one input variable and filter it. Filter_input_array :-get several input variable and filter then with the same or different filter. Filter_id() :- return the filter id of specified of filter name. Filter_list() :- return a list of all supported
- 4. Fiter_var() The below code use FILTER_VALIDATE_INT flag to validate integers <?php $int = 100; if (!filter_var($int, FILTER_VALIDATE_INT) === false) { echo("Integer is valid"); } else { echo("Integer is not valid"); } ?> IP address, EMAIL and URL can be validate using FILTER_VALIDATE_IP, FILTER_VALIDATE_EMAIL and FILTER_VALIDATE_URL,