PHP - File HandlingWhich PHP file open mode allows you to read from a file without modifying it?A"r" - Open for reading onlyB"w" - Open for writing onlyC"a" - Open for appending onlyD"x" - Create and open for writingCheck Answer
Step-by-Step SolutionSolution:Step 1: Understand the purpose of each mode"r" mode opens a file for reading only, without changing the file content.Step 2: Compare other modes"w" and "a" modes allow writing, and "x" creates a new file. Only "r" is read-only.Final Answer:"r" mode allows reading without modification -> Option AQuick Check:Read-only mode = "r" [OK]Quick Trick: Use "r" to read files safely without changing them [OK]Common Mistakes:Confusing "r" with "w" which overwrites filesUsing "a" expecting to readThinking "x" opens existing files
Master "File Handling" in PHP9 interactive learning modes - each teaches the same concept differentlyLearnWhyDeepVisualTryChallengeProjectRecallTime
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